Materiały źródłowe

• #1 Itchy Bottom (Pruritus Ani): Causes and Treatment

  https://patient.info/skin-conditions/itchy-bottom-pruritus-ani

  An itchy bottom (pruritus ani) is a persistent itch around the anus. There are many different causes, like haemorrhoids, skin conditions, or infections. […] Various conditions may cause an itchy bottom. When the cause is another condition which has been identified, this is known as secondary pruritus ani. However, in many cases the cause is not clear. This is called 'idiopathic pruritus ani’ which means 'itchy anus of unknown cause’. Up to 90% of cases of pruritus ani may be idiopathic. […] Skin conditions cause about half of all cases of secondary pruritus ani. […] Thrush and fungal infections are caused by germs that thrive in moist, warm, airless areas, such as around the anus. […] Generalised itch, which may seem more intense around the anus at times, may be caused by some diseases.

• #2

  https://link.springer.com/article/10.1007/s43472-024-00130-z

  Anal pruritus is a frequent disorder accounting for many proctological consultations, affecting mainly middle-aged males. […] The most frequent causes are irritant factors such as anal over-hygiene and some foods, faecal soiling due to incontinence, and proctological diseases such as haemorrhoids. […] Candida infections of the anus and dermatological diseases including contact dermatitis are also frequent. […] About 100 possible causes have been identified. It can be classified into primary (idiopathic) or secondary. […] Main secondary causes can be classified into local irritation, infections, proctological diseases, neoplastic lesions, dermatological and systemic diseases, and other aetiologies. […] Psychological factors can also be implied. […] Secondary causes are given in more detail in Table 1 and are discussed through history and examination. […] The treatment relies on the identification of a potential aetiology, and should be based on a step-up approach.

• #3 Anal itching: Causes, treatments, and home remedies

  https://www.medicalnewstoday.com/articles/168728

  An itchy anus can happen for many reasons, including washing too much or too little, psoriasis and other skin conditions, infections, certain foods, and medication use. […] Causes of pruritus ani can be either primary, meaning that there is no sign of another condition, or secondary, which means that there is an identifiable underlying cause. […] Possible underlying causes can include: Hygiene: Washing too much or too little can cause irritation. […] Skin conditions: Dermatitis and psoriasis can cause itching. […] Infections: Sexually transmitted infections (STIs), especially those that involve parasites, can lead to itching. […] Systemic conditions: Some conditions that affect the whole body can cause itching, including anemia, diabetes, inflammatory bowel disease (IBD), jaundice, leukemia, lymphoma, and thyroid disease. […] Foods: Dietary irritants include chili peppers. […] Psychological causes can sometimes trigger anal itching.

• #4 Anal Itching: Causes and Treatments

  https://www.webmd.com/skin-problems-and-treatments/what-to-know-anal-itching

  One of the most common reasons for itching around the anus is irritation from too much cleaning. If you scrub the area too much, the skin can get inflamed and itchy. Ingredients in some soaps, ointments, creams, or other products can also cause irritation. […] Feces can be a trigger for itching as well. You can get itchy if you dont clean off your skin completely. […] You may feel itchy or have discomfort if you eat foods with irritating ingredients. They pass in your bowel movements, and their remains in your feces may bother your skin. […] Some health conditions can lead to anal itching, including: […] Infections. Yeast infections are a type of fungal infection that can feel itchy and tender. The infection may start in the vagina and spread, or it may start in the anus. Its a common side effect of antibiotics. Some bacterial infections can also lead to itching.

• #5 Anal itching – Causes, Treatment and Prevention

  https://australian-bodycare.com/blogs/guides/anal-itching-gic?srsltid=AfmBOorLJdnopd8jP27P8cVVajeoqcK7bgmP1xayi1tex4Ey-QvDP_Sq

  Anal itching is a very common disorder. There can be several different reasons for itching around the anus. […] Anal itching is not a disease, but a symptom of something else. The itch is the result of skin irritation around the anus, which may be caused in different ways. […] It is not always possible to find the cause of an itchy bottom, but the most usual causes are haemorrhoids (piles), cracks in the anus opening (fissures), poor personal hygiene or excessive hygiene, or a bacterial or fungal infection. […] While the symptoms of anal itching are quite similar (itching and stinging, so it is almost impossible to resist the urge to scratch), the annoying itch may be due to any of several different causes. […] The overall cause of an itching bottom is irritation of the skin in and around the anus. It is not always possible to find precisely what causes the itch, but these are some of the most usual causes:

• #6 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Treatment with antibiotics Some powerful antibiotics that work against many different bacterial species can trigger anal itch by disturbing the normal ecology of the intestines. […] A local chemical irritation or skin allergy in the anal area In sensitive people, chemicals and medications that are applied to the anal area can cause local irritation or allergic reactions. […] Intense cleaning after a bowel movement Although the anal area should be cleaned after every bowel movement, this cleaning must be gentle. […] Less often, anal itch is a symptom of some illness or condition that either affects the anal area alone, or involves larger areas of the digestive tract or skin. […] Local diseases and conditions involving lower portions of the digestive tract These include hemorrhoids, skin tags, rectal fistulas, rectal fissures, and, rarely, anorectal cancer. […] Infections and parasites These include pinworms (especially in children), scabies, pediculosis, condyloma acuminata, and skin infections due to Candida or tinea fungi. […] Skin problems These include psoriasis, eczema, and seborrhea.

• #7 Itchy bottom (pruritus ani) – Overview | Guy’s and St Thomas’ NHS Foundation Trust

  https://www.guysandstthomas.nhs.uk/health-information/itchy-bottom-pruritus-ani

  Pruritus ani is a common condition of continual itching or irritation around the bottom (anus). […] There are many different causes of an itchy bottom. […] 90 out of 100 cases (90%) are caused by a minor leakage (soiling) from the bottom. If small amounts of poo (stool) or liquid mucus leak from the bottom, this can irritate the delicate skin around this area. […] Skin conditions such as dermatitis or psoriasis […] Infections […] Piles or haemorrhoids (lumps inside and around your bottom) and some skin conditions. […] Fissures […] Colorectal cancer (may occur with altered bowel habits and rectal bleeding).

• #8 Itchy bottom (pruritus ani) – Overview | Guy’s and St Thomas’ NHS Foundation Trust

  https://www.guysandstthomas.nhs.uk/health-information/itchy-bottom-pruritus-ani

  Pruritus ani is a common condition of continual itching or irritation around the bottom (anus). […] There are many different causes of an itchy bottom. […] 90 out of 100 cases (90%) are caused by a minor leakage (soiling) from the bottom. If small amounts of poo (stool) or liquid mucus leak from the bottom, this can irritate the delicate skin around this area. […] Skin conditions such as dermatitis or psoriasis […] Infections […] Piles or haemorrhoids (lumps inside and around your bottom) and some skin conditions. […] Fissures […] Colorectal cancer (may occur with altered bowel habits and rectal bleeding).

• #9

  https://fascrs.org/patients/diseases-and-conditions/a-z/pruritis-ani-expanded-version

  Pruritis ani is a common medical problem affecting both men and women. […] There are many causes of pruritis ani, and an accurate diagnosis is important in order to treat the specific cause. […] It is not always understood what causes the long-standing history of primary pruritis ani. It is believed that an irritating secretion from the anal canal may cause the itching. […] Other potential causes of irritation include moisture from sweat, stool and mucus. […] Studies have shown that the relief of symptoms can occur promptly after the stool has been cleansed from the perianal area, indicating that stool is likely an irritant causing of itching. […] Dietary factors may also play a role with pruritis ani, although there are not definitive studies implicating particular food items or diets.

• #10 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Anal itch, also known as pruritus ani, is an irritating, itchy sensation around the anus (the opening through which stool passes out of the body). Anal itch is a symptom, not an illness, and it can have many different causes. […] Instead, the itchy sensation is a sign that one or more of the following has irritated the skin in the area: Stool on the skin around the anal opening If the anal area isn’t cleaned properly after a bowel movement, a small amount of stool may be left behind on the skin, causing the area to itch. […] A diet containing foods or beverages that irritate the anus A number of foods and drinks can irritate the anus, including spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, cola, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, and tomatoes.

• #11 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Anal itch, also known as pruritus ani, is an irritating, itchy sensation around the anus (the opening through which stool passes out of the body). Anal itch is a symptom, not an illness, and it can have many different causes. […] Instead, the itchy sensation is a sign that one or more of the following has irritated the skin in the area: Stool on the skin around the anal opening If the anal area isn’t cleaned properly after a bowel movement, a small amount of stool may be left behind on the skin, causing the area to itch. […] A diet containing foods or beverages that irritate the anus A number of foods and drinks can irritate the anus, including spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, cola, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, and tomatoes.

• #12

  https://www.acpgbi.org.uk/patients/conditions/9/pruritus_ani_itchy_bottom/

  Pruritus ani (itchy bottom) has many possible causes, including haemorrhoids (piles) and certain skin conditions. However, the most common cause is a minor discharge from the anus. If small amounts of faeces (bowel movement) or liquid mucus (slime) leaks from the anus, this can irritate the delicate and sensitive skin around the anus. […] A diet that is high in fibre makes the faeces softer and more likely to cause leakage. You can try to make your faeces firmer and so less likely to leak by reducing the amount of fibre in your diet. This means avoiding large quantities of bran cereals, muesli, beans, peas, pulses and nuts. Limit the amount of fruit and vegetables, particularly those with skins, you eat. […] Avoid lagers and flat beers as these can make the problem worse. […] Avoid coffee, chocolate and fruit juices high in citric acid as these too make the pruritis worse.

• #13 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Anal itch, also known as pruritus ani, is an irritating, itchy sensation around the anus (the opening through which stool passes out of the body). Anal itch is a symptom, not an illness, and it can have many different causes. […] Instead, the itchy sensation is a sign that one or more of the following has irritated the skin in the area: Stool on the skin around the anal opening If the anal area isn’t cleaned properly after a bowel movement, a small amount of stool may be left behind on the skin, causing the area to itch. […] A diet containing foods or beverages that irritate the anus A number of foods and drinks can irritate the anus, including spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, cola, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, and tomatoes.

• #14

  https://www.acpgbi.org.uk/patients/conditions/9/pruritus_ani_itchy_bottom/

  Pruritus ani (itchy bottom) has many possible causes, including haemorrhoids (piles) and certain skin conditions. However, the most common cause is a minor discharge from the anus. If small amounts of faeces (bowel movement) or liquid mucus (slime) leaks from the anus, this can irritate the delicate and sensitive skin around the anus. […] A diet that is high in fibre makes the faeces softer and more likely to cause leakage. You can try to make your faeces firmer and so less likely to leak by reducing the amount of fibre in your diet. This means avoiding large quantities of bran cereals, muesli, beans, peas, pulses and nuts. Limit the amount of fruit and vegetables, particularly those with skins, you eat. […] Avoid lagers and flat beers as these can make the problem worse. […] Avoid coffee, chocolate and fruit juices high in citric acid as these too make the pruritis worse.

• #15 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Anal itch, also known as pruritus ani, is an irritating, itchy sensation around the anus (the opening through which stool passes out of the body). Anal itch is a symptom, not an illness, and it can have many different causes. […] Instead, the itchy sensation is a sign that one or more of the following has irritated the skin in the area: Stool on the skin around the anal opening If the anal area isn’t cleaned properly after a bowel movement, a small amount of stool may be left behind on the skin, causing the area to itch. […] A diet containing foods or beverages that irritate the anus A number of foods and drinks can irritate the anus, including spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, cola, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, and tomatoes.

• #16 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Anal itch, also known as pruritus ani, is an irritating, itchy sensation around the anus (the opening through which stool passes out of the body). Anal itch is a symptom, not an illness, and it can have many different causes. […] Instead, the itchy sensation is a sign that one or more of the following has irritated the skin in the area: Stool on the skin around the anal opening If the anal area isn’t cleaned properly after a bowel movement, a small amount of stool may be left behind on the skin, causing the area to itch. […] A diet containing foods or beverages that irritate the anus A number of foods and drinks can irritate the anus, including spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, cola, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, and tomatoes.

• #17 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Anal itch, also known as pruritus ani, is an irritating, itchy sensation around the anus (the opening through which stool passes out of the body). Anal itch is a symptom, not an illness, and it can have many different causes. […] Instead, the itchy sensation is a sign that one or more of the following has irritated the skin in the area: Stool on the skin around the anal opening If the anal area isn’t cleaned properly after a bowel movement, a small amount of stool may be left behind on the skin, causing the area to itch. […] A diet containing foods or beverages that irritate the anus A number of foods and drinks can irritate the anus, including spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, cola, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, and tomatoes.

• #18 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Anal itch, also known as pruritus ani, is an irritating, itchy sensation around the anus (the opening through which stool passes out of the body). Anal itch is a symptom, not an illness, and it can have many different causes. […] Instead, the itchy sensation is a sign that one or more of the following has irritated the skin in the area: Stool on the skin around the anal opening If the anal area isn’t cleaned properly after a bowel movement, a small amount of stool may be left behind on the skin, causing the area to itch. […] A diet containing foods or beverages that irritate the anus A number of foods and drinks can irritate the anus, including spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, cola, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, and tomatoes.

• #19 Why does your bum itch? Common causes of an itchy bottom

  https://patient.info/news-and-features/common-causes-of-an-itchy-bottom

  Many people will be aware of the uncomfortable effects felt following a spicy meal the night before. However, there are a few other foods that can result in an itchy bottom. Some fruits, especially citrus fruits, grapes and tomatoes, are known to be triggers for pruritus ani. […] The drug colchicine (which is used for gout), as well as peppermint oil, can also cause pruritus ani as a side-effect. […] The bottom becoming overly hot and sweaty can definitely exacerbate an itch. […] Stress and anxiety often worsen anal itching, especially at night time. […] Lastly, there is a very well known phenomenon known as the 'itch-scratch cycle’. Essentially this means that the more you scratch something, the itchier it becomes.

• #20 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Anal itch, also known as pruritus ani, is an irritating, itchy sensation around the anus (the opening through which stool passes out of the body). Anal itch is a symptom, not an illness, and it can have many different causes. […] Instead, the itchy sensation is a sign that one or more of the following has irritated the skin in the area: Stool on the skin around the anal opening If the anal area isn’t cleaned properly after a bowel movement, a small amount of stool may be left behind on the skin, causing the area to itch. […] A diet containing foods or beverages that irritate the anus A number of foods and drinks can irritate the anus, including spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, cola, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, and tomatoes.

• #21 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Anal itch, also known as pruritus ani, is an irritating, itchy sensation around the anus (the opening through which stool passes out of the body). Anal itch is a symptom, not an illness, and it can have many different causes. […] Instead, the itchy sensation is a sign that one or more of the following has irritated the skin in the area: Stool on the skin around the anal opening If the anal area isn’t cleaned properly after a bowel movement, a small amount of stool may be left behind on the skin, causing the area to itch. […] A diet containing foods or beverages that irritate the anus A number of foods and drinks can irritate the anus, including spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, cola, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, and tomatoes.

• #22 Itchy bottom | nidirect

  https://www.nidirect.gov.uk/conditions/itchy-bottom

  An itchy bottom is a symptom, not a condition. […] Many cases of an itchy bottom have an underlying cause, for example: infection and infestation such as staphylococcal bacterial infections and scabies […] a skin condition such as atopic eczema or psoriasis […] haemorrhoids (piles) swellings that contain enlarged and swollen blood vessels in and around the anus […] anal fissure – a tear or open sore (ulcer) that develops in the lining of the anal canal […] a chronic condition – such as diabetes […] some medication (ask your pharmacist or GP if you have this symptom and you think medication might be the cause) […] certain foods and drinks – including spicy food, citrus fruits, tomatoes, nuts, dairy products (including milk), coffee, beer, and wine. […] In children, an itchy bottom is often caused by threadworms. But not all cases of itchy bottom have an identifiable cause. […] If your itchy bottom is caused by an underlying condition, such as a bacterial infection or piles, the underlying condition will also need to be treated.

• #23 Itchy bottom | nidirect

  https://www.nidirect.gov.uk/conditions/itchy-bottom

  An itchy bottom is a symptom, not a condition. […] Many cases of an itchy bottom have an underlying cause, for example: infection and infestation such as staphylococcal bacterial infections and scabies […] a skin condition such as atopic eczema or psoriasis […] haemorrhoids (piles) swellings that contain enlarged and swollen blood vessels in and around the anus […] anal fissure – a tear or open sore (ulcer) that develops in the lining of the anal canal […] a chronic condition – such as diabetes […] some medication (ask your pharmacist or GP if you have this symptom and you think medication might be the cause) […] certain foods and drinks – including spicy food, citrus fruits, tomatoes, nuts, dairy products (including milk), coffee, beer, and wine. […] In children, an itchy bottom is often caused by threadworms. But not all cases of itchy bottom have an identifiable cause. […] If your itchy bottom is caused by an underlying condition, such as a bacterial infection or piles, the underlying condition will also need to be treated.

• #24

  https://www.acpgbi.org.uk/patients/conditions/9/pruritus_ani_itchy_bottom/

  Pruritus ani (itchy bottom) has many possible causes, including haemorrhoids (piles) and certain skin conditions. However, the most common cause is a minor discharge from the anus. If small amounts of faeces (bowel movement) or liquid mucus (slime) leaks from the anus, this can irritate the delicate and sensitive skin around the anus. […] A diet that is high in fibre makes the faeces softer and more likely to cause leakage. You can try to make your faeces firmer and so less likely to leak by reducing the amount of fibre in your diet. This means avoiding large quantities of bran cereals, muesli, beans, peas, pulses and nuts. Limit the amount of fruit and vegetables, particularly those with skins, you eat. […] Avoid lagers and flat beers as these can make the problem worse. […] Avoid coffee, chocolate and fruit juices high in citric acid as these too make the pruritis worse.

• #25 Anal Itching: Causes, Prevention and Treatment Tips – Scripps Health

  https://www.scripps.org/news_items/7231-what-are-the-causes-of-anal-itching

  Anal itching may not be something you’re comfortable talking about, although many people experience it occasionally. […] An itchy anus happens when the skin around the anus becomes irritated. It’s not always clear what triggers this, but there are many possible causes. […] Anal itching, also known as pruritus ani, is not a disease, but a symptom related to skin or internal medical issues. […] Causes include: […] Anal disorders, including hemorrhoids, abscesses, fissures and fistulas, can cause itching, pain and other discomfort. […] Numerous skin conditions can trigger anal itching, including psoriasis, dermatitis and eczema. […] Bacterial, fungal and parasitical infections and sexually transmitted infections (STIs), including gonorrhea and anal herpes, can cause anal itching. Anal warts from human papillomavirus (HPV) the most common STI are also culprits.

• #26 Anal Itching (Pruritus Ani): Causes, Treatment, Home Remedies

  https://my.clevelandclinic.org/health/diseases/15574-anal-itching-pruritus-ani

  Anal itching has many causes. […] Causes may include infections, systemic diseases, contact dermatitis and other dermatological conditions. […] The skin in your perianal area is sensitive. Scented soaps, powders, lotions, creams and ointments can cause an allergic reaction. […] You may also irritate your skin if you wipe with rough toilet paper or use a rough washcloth or hot water to clean the area. […] Other causes of anal itching include hemorrhoids, yeast infections, anal fissures, HPV and warts, and pinworms. […] Hemorrhoids are swollen, enlarged veins that form inside and outside your anus and rectum. […] A fungal body (yeast) called candida causes yeast infections. […] Anal fissures are tears in the lining of your anus or anal canal. […] Human papilloma virus (HPV) is a very common virus that can affect your genitals as well as your rectum and anus. […] Pinworms are parasites, which means they depend on other living things (hosts) to get nutrients so they can grow and multiply.

• #27 Why Hemorrhoids Itch And What to Do About It

  https://www.verywellhealth.com/do-hemorrhoids-itch-5217996

  Hemorrhoids often itch when swollen veins in the anus or rectum trigger inflammation. Inflammation, in turn, stimulates the release of a chemical called histamine that causes itching of the anus (pruritus ani). […] Hemorrhoids cause inflammation mediated by a hormone-like substance called prostaglandin. While prostaglandins do not cause itching, they can cause immune cells within the skin, called mast cells, to break open. […] Studies have shown hemorrhoid symptoms generally improve after stool (feces) has been cleaned from anal tissues. This suggests that stool is an irritant that causes itching. […] Mucus leakage is also a common symptom of hemorrhoids. Because mucus is so thick, it can trap moisture in skin folds in the anus, causing moisture-related skin damage (maceration) and inflammation. […] Hemorrhoids can cause itching due to inflammation, poor anal hygiene, excess moisture, or excessive anal cleaning. Scratching or rubbing can make the itching worse.

• #28 Anal Itching (Pruritus Ani): Causes, Treatment, Home Remedies

  https://my.clevelandclinic.org/health/diseases/15574-anal-itching-pruritus-ani

  Anal itching has many causes. […] Causes may include infections, systemic diseases, contact dermatitis and other dermatological conditions. […] The skin in your perianal area is sensitive. Scented soaps, powders, lotions, creams and ointments can cause an allergic reaction. […] You may also irritate your skin if you wipe with rough toilet paper or use a rough washcloth or hot water to clean the area. […] Other causes of anal itching include hemorrhoids, yeast infections, anal fissures, HPV and warts, and pinworms. […] Hemorrhoids are swollen, enlarged veins that form inside and outside your anus and rectum. […] A fungal body (yeast) called candida causes yeast infections. […] Anal fissures are tears in the lining of your anus or anal canal. […] Human papilloma virus (HPV) is a very common virus that can affect your genitals as well as your rectum and anus. […] Pinworms are parasites, which means they depend on other living things (hosts) to get nutrients so they can grow and multiply.

• #29 Anal Itching: Causes and Treatments

  https://www.webmd.com/skin-problems-and-treatments/what-to-know-anal-itching

  Fecal or urinary incontinence. Children, older adults, and people with disabilities may have trouble using the bathroom. Wearing diapers or having accidents can result in itching because of feces or urine lingering on the skin. […] Parasites. Anal itching in children may be caused by tiny parasites called pinworms. Pinworms are harmless but uncomfortable. Scabies have also been known to cause itching around the anus. […] Skin conditions. If you have a skin disorder such as psoriasis, or atopic dermatitis, it can affect any skin on your body, including around your anus. Rashes due to allergic reactions can also affect the area. […] Other health conditions. Some conditions can cause itching, such as diabetes mellitus, leukemia, lymphoma, thyroid disease, renal disease, liver disorders, Crohns disease, and irritable bowel syndrome. […] Physical conditions. Physical issues involving your anus, such as hemorrhoids or anal fissures, can result in itching.

• #30

  https://fascrs.org/patients/diseases-and-conditions/a-z/pruritis-ani-expanded-version

  Infectious processes may also result in pruritis ani. […] Numerous skin conditions also cause secondary pruritis ani. […] Medical diseases that affect the entire body may also cause pruritis ani. […] While this is a wide variety of potential causes, it is important to understand that in many cases the itching has no identifiable source.

• #31 Anal itching – Causes, Treatment and Prevention

  https://australian-bodycare.com/blogs/guides/anal-itching-gic?srsltid=AfmBOorLJdnopd8jP27P8cVVajeoqcK7bgmP1xayi1tex4Ey-QvDP_Sq

  Haemorrhoids are one of the most common causes, and will often lead to itching round the anus. […] Poor hygiene may result in itching around the anus. […] Excessive hygiene can actually cause anal itching too. […] Threadworms cause itching in the anus not least in the evening and at night. […] Cuts in the anal opening (also called fissures) can cause itching. […] Boils near the anus will normally also cause itching. […] Skin diseases such as psoriasis may cause itching dry skin anywhere on the body, and thus round the anus too. […] Eczema near the anus will normally also cause itching. […] Fungal or bacterial infections usually cause itching, so if you have a fungal or bacterial infection in or around the anus, it will itch. […] Outpouching of the anal mucous membrane (anal prolapse) or outpouching of the rectum (rectal prolapse) can cause itching at the anus. […] Antibiotics may cause anal itching. […] Some foods such as coffee, chocolate, beer, nuts, spicy food or dairy products may cause anal itching in some people.

• #32 Anal itching – Causes, Treatment and Prevention

  https://australian-bodycare.com/blogs/guides/anal-itching-gic?srsltid=AfmBOorLJdnopd8jP27P8cVVajeoqcK7bgmP1xayi1tex4Ey-QvDP_Sq

  Haemorrhoids are one of the most common causes, and will often lead to itching round the anus. […] Poor hygiene may result in itching around the anus. […] Excessive hygiene can actually cause anal itching too. […] Threadworms cause itching in the anus not least in the evening and at night. […] Cuts in the anal opening (also called fissures) can cause itching. […] Boils near the anus will normally also cause itching. […] Skin diseases such as psoriasis may cause itching dry skin anywhere on the body, and thus round the anus too. […] Eczema near the anus will normally also cause itching. […] Fungal or bacterial infections usually cause itching, so if you have a fungal or bacterial infection in or around the anus, it will itch. […] Outpouching of the anal mucous membrane (anal prolapse) or outpouching of the rectum (rectal prolapse) can cause itching at the anus. […] Antibiotics may cause anal itching. […] Some foods such as coffee, chocolate, beer, nuts, spicy food or dairy products may cause anal itching in some people.

• #33 Gastroenterology Specialists Honesdale: 10 Causes of Anal Itch – Northeastern Gastroenterology Associates

  https://www.gastrohonesdale.com/blog/why-does-my-anus-itch

  An itchy bottom can be uncomfortable and embarrassing. If you are suffering from an chronic itchy anus, it could be caused by a number of different things. […] Most of the time, anal itch is not a sign of a disease of the anus or rectum, but is a sign that something has irritated the skin. […] A number of infections and medical conditions can also be at fault. From yeast infections and sexually transmitted infections (STIs) to bacterial infections and parasites (such as pinworms), any number of things could be causing your symptom(s). […] What you eat and drink may cause anal itching, for example, coffee can loosen your anal muscles, causing stool to leak out, triggering itch. […] If you are suffering from watery or bloody stool, the amount of irritation caused by that and wiping can lead to an irritated, itchy anus.

• #34 Anal Itching (Pruritus Ani): Causes, Treatment, Home Remedies

  https://my.clevelandclinic.org/health/diseases/15574-anal-itching-pruritus-ani

  Anal itching has many causes. […] Causes may include infections, systemic diseases, contact dermatitis and other dermatological conditions. […] The skin in your perianal area is sensitive. Scented soaps, powders, lotions, creams and ointments can cause an allergic reaction. […] You may also irritate your skin if you wipe with rough toilet paper or use a rough washcloth or hot water to clean the area. […] Other causes of anal itching include hemorrhoids, yeast infections, anal fissures, HPV and warts, and pinworms. […] Hemorrhoids are swollen, enlarged veins that form inside and outside your anus and rectum. […] A fungal body (yeast) called candida causes yeast infections. […] Anal fissures are tears in the lining of your anus or anal canal. […] Human papilloma virus (HPV) is a very common virus that can affect your genitals as well as your rectum and anus. […] Pinworms are parasites, which means they depend on other living things (hosts) to get nutrients so they can grow and multiply.

• #35 Anal Yeast Infection: Symptoms, Causes, Diagnosis & Treatment

  https://my.clevelandclinic.org/health/diseases/22907-anal-yeast-infection

  A yeast called Candida causes anal yeast infections. […] A buildup of Candida in your intestines can travel to your anal canal, causing a yeast infection. […] Candida also grow and thrive in warm, damp environments. Conditions and other factors that allow Candida to grow include: […] Yeast infections are more common in certain groups of people. […] Yeast infections are also more common in people with weakened immune systems. […] An anal yeast infection isn’t considered a sexually transmitted infection (STI).

• #36 6 Reasons You Have an Itchy Butt | PREPARATION H

  https://www.preparationh.com/learn-more/6-reasons-you-have-itchy-butt/

  „Tiny pinpoint worms can grow in the gut and come out of the anus in the early hours of the morning, causing an itchy, irritated anus when you wake up,” Dr. Shainhouse explains. […] „Group A B-hemolytic streptococcal bacteria can actually infect the anal area,” Dr. Shainhouse says, „causing an itchy or painful red rash inside the buttocks.”

• #37 Why Does My Kid Keep Scratching Their Butt?

  https://www.parents.com/kids/health/why-does-my-kid-keep-scratching-his-butt/

  According to the National Library of Medicine, perianal streptococcal cellulitis is an infection of the anal area that is caused by the same streptococcal bacteria that causes strep throat. […] Leftover poop from incomplete wiping can lead to itchiness too. […] According to the National Eczema Association (NEA), atopic dermatitis is a common form of eczema that’s caused by an overactive immune system. […] Sometimes kids (and adults, for that matter), can get an itchy butt for some pretty random reasons. […] If the itchiness persists, consult a health care provider. […] An itchy anus is not considered a medical emergency, but if you see any bleeding, call your doctor to rule out gastrointestinal bleeding or other problems.

• #38 Anal Itching (Pruritus Ani): Causes, Treatment, Home Remedies

  https://my.clevelandclinic.org/health/diseases/15574-anal-itching-pruritus-ani

  Anal itching has many causes. […] Causes may include infections, systemic diseases, contact dermatitis and other dermatological conditions. […] The skin in your perianal area is sensitive. Scented soaps, powders, lotions, creams and ointments can cause an allergic reaction. […] You may also irritate your skin if you wipe with rough toilet paper or use a rough washcloth or hot water to clean the area. […] Other causes of anal itching include hemorrhoids, yeast infections, anal fissures, HPV and warts, and pinworms. […] Hemorrhoids are swollen, enlarged veins that form inside and outside your anus and rectum. […] A fungal body (yeast) called candida causes yeast infections. […] Anal fissures are tears in the lining of your anus or anal canal. […] Human papilloma virus (HPV) is a very common virus that can affect your genitals as well as your rectum and anus. […] Pinworms are parasites, which means they depend on other living things (hosts) to get nutrients so they can grow and multiply.

• #39 Anal Itching: 8 Common Causes & What to Do – Tua Saúde

  https://www.tuasaude.com/en/anal-itching/

  Actively taking an antibiotic or having used one recently can alter bacterial flora in the intestines and anus. It can promote the growth of Candida albicans fungus which can lead to a yeast infection and cause anal itching. […] Some allergies caused by hygiene products, like scented toilet paper, deodorant, talc powder or scented soaps can irritate the skin and cause wounds, which can lead to anal itching. […] Hemorrhoids occur due to swelling and inflammation of the blood vessels in the skin and borders of the anus. They usually cause pain and bleeding with bowel movements, however hemorrhoids can also cause anal itching. […] Infections that can cause anal itching include: Yeast infections are the most common type of infection that cause anal itching. It occurs with imbalances in bacterial flora, caused by poor hygiene, a weakened immune system (like in diabetes or HIV), excessive sweat or heat from physical activity, obesity, or antibiotic use. […] Anal itching can be a symptom of an STI, like HPV, genital herpes, syphilis and gonorrhea.

• #40 Itchy bottom | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/skin-hair-and-nails/itchy-bottom/

  Itchy bottom is a strong urge to scratch the skin around your bottom (anus). […] The cause of itchy bottom isnt always known. If it gets better quickly without treatment, it may be the result of a short term issue. […] Its rare for an itchy bottom alone to be a sign of something more serious. […] An itchy bottom thats worse at night can be caused by threadworms. This is often the case for children. […] Sometimes an itchy bottom can be a symptom of another problem or condition. This includes: skin conditions like eczema or psoriasis if you have itching elsewhere on the body too, threadworms (especially in children) symptoms will get worse at night and there will be worms in poo (they look like bits of thread), haemorrhoids (piles) swellings in and around the anus, as well as pain and blood when pooing, bowel incontinence or diarrhoea can cause poo leaking or pooing you can not control, sexually transmitted infection (STI) like genital warts can cause sores, swelling and irritation, ringworm can cause sores, swelling and irritation. […] Some long-term medications can also cause an itchy bottom. For example, steroid creams or peppermint oil. […] You should also speak to a GP if your itchy bottom is caused by an underlying condition like piles.

• #41 Anal Itching: Causes and Treatments

  https://www.webmd.com/skin-problems-and-treatments/what-to-know-anal-itching

  Fecal or urinary incontinence. Children, older adults, and people with disabilities may have trouble using the bathroom. Wearing diapers or having accidents can result in itching because of feces or urine lingering on the skin. […] Parasites. Anal itching in children may be caused by tiny parasites called pinworms. Pinworms are harmless but uncomfortable. Scabies have also been known to cause itching around the anus. […] Skin conditions. If you have a skin disorder such as psoriasis, or atopic dermatitis, it can affect any skin on your body, including around your anus. Rashes due to allergic reactions can also affect the area. […] Other health conditions. Some conditions can cause itching, such as diabetes mellitus, leukemia, lymphoma, thyroid disease, renal disease, liver disorders, Crohns disease, and irritable bowel syndrome. […] Physical conditions. Physical issues involving your anus, such as hemorrhoids or anal fissures, can result in itching.

• #42 Itchy bottom | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/skin-hair-and-nails/itchy-bottom/

  Itchy bottom is a strong urge to scratch the skin around your bottom (anus). […] The cause of itchy bottom isnt always known. If it gets better quickly without treatment, it may be the result of a short term issue. […] Its rare for an itchy bottom alone to be a sign of something more serious. […] An itchy bottom thats worse at night can be caused by threadworms. This is often the case for children. […] Sometimes an itchy bottom can be a symptom of another problem or condition. This includes: skin conditions like eczema or psoriasis if you have itching elsewhere on the body too, threadworms (especially in children) symptoms will get worse at night and there will be worms in poo (they look like bits of thread), haemorrhoids (piles) swellings in and around the anus, as well as pain and blood when pooing, bowel incontinence or diarrhoea can cause poo leaking or pooing you can not control, sexually transmitted infection (STI) like genital warts can cause sores, swelling and irritation, ringworm can cause sores, swelling and irritation. […] Some long-term medications can also cause an itchy bottom. For example, steroid creams or peppermint oil. […] You should also speak to a GP if your itchy bottom is caused by an underlying condition like piles.

• #43 Pruritus ani (itchy anus)

  https://dermnetnz.org/topics/itchy-anus

  Itchy anus can be classified as being primary (idiopathic, no obvious cause) or secondary. […] Factors contributing to an itchy anus may include: Perianal hypertrichosis, Perianal hyperhidrosis, Deeply set anal opening (so-called funnel-shaped anus), Irritating stools particularly if there is diarrhoea or faecal leakage, and if acidic or highly spiced foods are eaten, Overzealous cleaning and use of personal care products, Systemic disease diabetes mellitus, uraemic pruritus, liver disease, thyroid disease, haematological disorders. […] Any common skin disease may involve the anogenital area resulting in secondary anal itching, and this may be the only site of involvement. Anal itch is unrelated to haemorrhoids or other anal conditions. […] Skin infections: Bacterial perianal streptococcal dermatitis, erythrasma; Fungal Candidal intertrigo, dermatophyte such as Trichophyton rubrum; Viral anogenital warts. […] Infestations: Pinworms. […] Inflammatory skin conditions: Dermatitis atopic, seborrhoeic, contact (irritant or allergic), Flexural psoriasis, Lichen sclerosus, Lichen planus. […] Skin tumours: Anal squamous cell carcinoma, Extramammary Paget disease of the skin.

• #44 Pruritus ani (itchy anus)

  https://dermnetnz.org/topics/itchy-anus

  Itchy anus can be classified as being primary (idiopathic, no obvious cause) or secondary. […] Factors contributing to an itchy anus may include: Perianal hypertrichosis, Perianal hyperhidrosis, Deeply set anal opening (so-called funnel-shaped anus), Irritating stools particularly if there is diarrhoea or faecal leakage, and if acidic or highly spiced foods are eaten, Overzealous cleaning and use of personal care products, Systemic disease diabetes mellitus, uraemic pruritus, liver disease, thyroid disease, haematological disorders. […] Any common skin disease may involve the anogenital area resulting in secondary anal itching, and this may be the only site of involvement. Anal itch is unrelated to haemorrhoids or other anal conditions. […] Skin infections: Bacterial perianal streptococcal dermatitis, erythrasma; Fungal Candidal intertrigo, dermatophyte such as Trichophyton rubrum; Viral anogenital warts. […] Infestations: Pinworms. […] Inflammatory skin conditions: Dermatitis atopic, seborrhoeic, contact (irritant or allergic), Flexural psoriasis, Lichen sclerosus, Lichen planus. […] Skin tumours: Anal squamous cell carcinoma, Extramammary Paget disease of the skin.

• #45 Why Does My Kid Keep Scratching Their Butt?

  https://www.parents.com/kids/health/why-does-my-kid-keep-scratching-his-butt/

  According to the National Library of Medicine, perianal streptococcal cellulitis is an infection of the anal area that is caused by the same streptococcal bacteria that causes strep throat. […] Leftover poop from incomplete wiping can lead to itchiness too. […] According to the National Eczema Association (NEA), atopic dermatitis is a common form of eczema that’s caused by an overactive immune system. […] Sometimes kids (and adults, for that matter), can get an itchy butt for some pretty random reasons. […] If the itchiness persists, consult a health care provider. […] An itchy anus is not considered a medical emergency, but if you see any bleeding, call your doctor to rule out gastrointestinal bleeding or other problems.

• #46 Pruritus ani (itchy anus)

  https://dermnetnz.org/topics/itchy-anus

  Itchy anus can be classified as being primary (idiopathic, no obvious cause) or secondary. […] Factors contributing to an itchy anus may include: Perianal hypertrichosis, Perianal hyperhidrosis, Deeply set anal opening (so-called funnel-shaped anus), Irritating stools particularly if there is diarrhoea or faecal leakage, and if acidic or highly spiced foods are eaten, Overzealous cleaning and use of personal care products, Systemic disease diabetes mellitus, uraemic pruritus, liver disease, thyroid disease, haematological disorders. […] Any common skin disease may involve the anogenital area resulting in secondary anal itching, and this may be the only site of involvement. Anal itch is unrelated to haemorrhoids or other anal conditions. […] Skin infections: Bacterial perianal streptococcal dermatitis, erythrasma; Fungal Candidal intertrigo, dermatophyte such as Trichophyton rubrum; Viral anogenital warts. […] Infestations: Pinworms. […] Inflammatory skin conditions: Dermatitis atopic, seborrhoeic, contact (irritant or allergic), Flexural psoriasis, Lichen sclerosus, Lichen planus. […] Skin tumours: Anal squamous cell carcinoma, Extramammary Paget disease of the skin.

• #47 6 Reasons You Have an Itchy Butt | PREPARATION H

  https://www.preparationh.com/learn-more/6-reasons-you-have-itchy-butt/

  Allergic contact dermatitis […] This is when some ingredient you’re putting on your body is triggering an allergic skin reaction, Dr. Shainhouse saysand the culprit might even be coming from a natural or organic product. „You don’t usually develop a rash after the first exposure,” she says, „but repeated exposure sensitizes the skin in some people.” […] Hemorrhoids can cause bleeding, itching, and difficulty cleaning after bowel movement, says Dr. Roshini Rajapaksa, a gastroenterologist and clinical associate professor at NYU Langone Health. […] Constipation can do more than produce hemorrhoids; it can also create anal fissures. […] This autoimmune inflammatory condition shows up in the form of thick pink-white, scaly plaques on your skin. „While psoriasis favors the elbows, knees and scalp, a secret hiding place is the buttock cleft and anal area,” Dr. Shainhouse says.

• #48 Itchy Bottom (Pruritus Ani): Causes and Treatment

  https://patient.info/skin-conditions/itchy-bottom-pruritus-ani

  An itchy bottom (pruritus ani) is a persistent itch around the anus. There are many different causes, like haemorrhoids, skin conditions, or infections. […] Various conditions may cause an itchy bottom. When the cause is another condition which has been identified, this is known as secondary pruritus ani. However, in many cases the cause is not clear. This is called 'idiopathic pruritus ani’ which means 'itchy anus of unknown cause’. Up to 90% of cases of pruritus ani may be idiopathic. […] Skin conditions cause about half of all cases of secondary pruritus ani. […] Thrush and fungal infections are caused by germs that thrive in moist, warm, airless areas, such as around the anus. […] Generalised itch, which may seem more intense around the anus at times, may be caused by some diseases.

• #49 Pruritus ani (itchy anus)

  https://dermnetnz.org/topics/itchy-anus

  Itchy anus can be classified as being primary (idiopathic, no obvious cause) or secondary. […] Factors contributing to an itchy anus may include: Perianal hypertrichosis, Perianal hyperhidrosis, Deeply set anal opening (so-called funnel-shaped anus), Irritating stools particularly if there is diarrhoea or faecal leakage, and if acidic or highly spiced foods are eaten, Overzealous cleaning and use of personal care products, Systemic disease diabetes mellitus, uraemic pruritus, liver disease, thyroid disease, haematological disorders. […] Any common skin disease may involve the anogenital area resulting in secondary anal itching, and this may be the only site of involvement. Anal itch is unrelated to haemorrhoids or other anal conditions. […] Skin infections: Bacterial perianal streptococcal dermatitis, erythrasma; Fungal Candidal intertrigo, dermatophyte such as Trichophyton rubrum; Viral anogenital warts. […] Infestations: Pinworms. […] Inflammatory skin conditions: Dermatitis atopic, seborrhoeic, contact (irritant or allergic), Flexural psoriasis, Lichen sclerosus, Lichen planus. […] Skin tumours: Anal squamous cell carcinoma, Extramammary Paget disease of the skin.

• #50 Pruritus ani (itchy anus)

  https://dermnetnz.org/topics/itchy-anus

  Itchy anus can be classified as being primary (idiopathic, no obvious cause) or secondary. […] Factors contributing to an itchy anus may include: Perianal hypertrichosis, Perianal hyperhidrosis, Deeply set anal opening (so-called funnel-shaped anus), Irritating stools particularly if there is diarrhoea or faecal leakage, and if acidic or highly spiced foods are eaten, Overzealous cleaning and use of personal care products, Systemic disease diabetes mellitus, uraemic pruritus, liver disease, thyroid disease, haematological disorders. […] Any common skin disease may involve the anogenital area resulting in secondary anal itching, and this may be the only site of involvement. Anal itch is unrelated to haemorrhoids or other anal conditions. […] Skin infections: Bacterial perianal streptococcal dermatitis, erythrasma; Fungal Candidal intertrigo, dermatophyte such as Trichophyton rubrum; Viral anogenital warts. […] Infestations: Pinworms. […] Inflammatory skin conditions: Dermatitis atopic, seborrhoeic, contact (irritant or allergic), Flexural psoriasis, Lichen sclerosus, Lichen planus. […] Skin tumours: Anal squamous cell carcinoma, Extramammary Paget disease of the skin.

• #51 Anal Itching: Causes, Prevention and Treatment Tips – Scripps Health

  https://www.scripps.org/news_items/7231-what-are-the-causes-of-anal-itching

  Personal habits, such as what we eat and wear, how we clean ourselves and products we use, can irritate the skin around the anus. […] Specific health conditions that can aggravate your anus area include: Type 2 diabetes, leukemia and lymphoma, kidney failure or liver disease, hyperthyroidism, anemia, anxiety and stress.

• #52 11 Common Reasons Why Your Butt Might Itch

  https://www.health.com/condition/skin-conditions/itchy-butt

  Itchy Butt Caused by Hygiene Issues: Itching in the perianal region (around the anus) often depends on how you wipe after a bowel movement. Not wiping well enough can leave behind fecal matter and moisture, Brian Kim, MD, Vice Chair of Research at the Icahn School of Medicine at Mount Sinai, told Health. […] Chronic skin conditions can cause inflammation and itching anywhere, including the perianal region. […] Anal eczema is likely to have an underlying or secondary disease. […] Causes of contact dermatitis include soaps, detergents, perfumes, latex, fragrances, dyes, preservatives, nickel, cobalt, and certain foods. […] Certain long-term health conditions can contribute to anal itching and inflammation. For example, diabetes and autoimmune diseases can make people more vulnerable to bacterial or fungal infections. […] Nerve damage may also be a cause for an itchy bum. „We have some suspicion that some of this type of itching is neurologic,” said Dr. Kim. […] Having an itchy butt isn’t usually a reason to jump to scary conclusions. However, in rare cases, anal itchiness can also be a sign of cancer.

• #53

  https://www.kushae.com/blogs/news/why-is-my-butt-itchy-8-causes-of-an-itchy-anus?srsltid=AfmBOopEoyizAOW6tY8sDRbvZkPhM_7MNQqsgi-mD9JZtA1EnDEvMpI7

  Itchy butt, or pruritis ani as it is medically known, is itching or irritation of the skin surrounding the anus. An itchy butt or anus can happen because of diet, hemorrhoids, diabetes, and more. […] Sugary foods, caffeine, spicy foods, and dairy can irritate your digestive system and poop, causing itching or irritation to your anus. […] People with diabetes can sometimes suffer from nerve damage. This nerve damage can cause itchiness around the anus because diabetes raises the sugar levels in the blood, and this can damage the nerves and blood levels around the anus. […] Hemorrhoids are swollen veins in the lower rectum or the anus; they can cause anal itching, pain, and bleeding. […] Antibiotics can cause anal itching because they can negatively affect the natural balance of bacteria in the gut by killing the 'good bacteria’ that help with digestion.

• #54 Gastroenterology Specialists Honesdale: 10 Causes of Anal Itch – Northeastern Gastroenterology Associates

  https://www.gastrohonesdale.com/blog/why-does-my-anus-itch

  Another potential cause of anal itching is your underwear. If your underwear is made of synthetic fibers, it could lead to too much moisture down below, which can cause chafing and other problems. […] Hemorrhoids are a common cause of anal itching, causing a burning pain sensation around your anus as well. […] Anal fissures are tiny sores or cuts (i.e., fissures) that can open up in your anus causing itchiness and pain. […] Anal warts can cause itching, and can be caused by the human papillomavirus (HPV) a sexually transmitted disease. […] Pinworms are small worms that can get in your digestive system through contaminated foods, bed linens, and other places that can cause itching at night. […] People who suffer from psoriasis, its possible to get this around ones anus as well. […] There are plenty of other causes of anal itch. Those may include: Antibiotics that cause diarrhea, Anxiety, Anemia, Hyperthyroidism, Leukemia, Type 2 diabetes.

• #55 Anal itching: Causes, treatments, and home remedies

  https://www.medicalnewstoday.com/articles/168728

  An itchy anus can happen for many reasons, including washing too much or too little, psoriasis and other skin conditions, infections, certain foods, and medication use. […] Causes of pruritus ani can be either primary, meaning that there is no sign of another condition, or secondary, which means that there is an identifiable underlying cause. […] Possible underlying causes can include: Hygiene: Washing too much or too little can cause irritation. […] Skin conditions: Dermatitis and psoriasis can cause itching. […] Infections: Sexually transmitted infections (STIs), especially those that involve parasites, can lead to itching. […] Systemic conditions: Some conditions that affect the whole body can cause itching, including anemia, diabetes, inflammatory bowel disease (IBD), jaundice, leukemia, lymphoma, and thyroid disease. […] Foods: Dietary irritants include chili peppers. […] Psychological causes can sometimes trigger anal itching.

• #56 Gastroenterology Specialists Honesdale: 10 Causes of Anal Itch – Northeastern Gastroenterology Associates

  https://www.gastrohonesdale.com/blog/why-does-my-anus-itch

  Another potential cause of anal itching is your underwear. If your underwear is made of synthetic fibers, it could lead to too much moisture down below, which can cause chafing and other problems. […] Hemorrhoids are a common cause of anal itching, causing a burning pain sensation around your anus as well. […] Anal fissures are tiny sores or cuts (i.e., fissures) that can open up in your anus causing itchiness and pain. […] Anal warts can cause itching, and can be caused by the human papillomavirus (HPV) a sexually transmitted disease. […] Pinworms are small worms that can get in your digestive system through contaminated foods, bed linens, and other places that can cause itching at night. […] People who suffer from psoriasis, its possible to get this around ones anus as well. […] There are plenty of other causes of anal itch. Those may include: Antibiotics that cause diarrhea, Anxiety, Anemia, Hyperthyroidism, Leukemia, Type 2 diabetes.

• #57

  https://www.womenshealthmag.com/health/a25658379/why-is-my-butthole-itchy/

  Even too much cleaning of the anus can have adverse effects. […] Finally, any systemic disease that can cause diffuse itching such as lymphoma, liver disease, kidney failure, hypothyroidism, and vitamin A, D, and iron deficiencies may cause anal itching. […] Hemorrhoids are inflamed, swollen veins around your anus or in your lower rectum, according to the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). […] Pinworms are small parasites that can travel from the anal area up the vagina to the uterus, fallopian tubes and around the pelvic organs, per the Mayo Clinic. […] When a fungus called Candida grows at a quicker rate than usual (typically caused by antibiotics or a weakened immune system), it can cause an infection of the area, according to the CDC. […] An allergic irritation to a fragrance or other product could be the culprit, says Dr. Nazareth.

• #58 Anal Itching: Treatment, Causes, Symptoms & Home Remedies

  https://www.medicinenet.com/anal_itching/article.htm

  Anal itching (known medically as pruritus ani) is irritation of the skin at the opening of the anal canal through which stool exits the body which leads to itching. […] An itchy bottom can be caused by irritating chemicals in the foods we eat, such as are found in spices, hot sauces, and peppers. […] Anal itching also can be caused by the irritation of continuous moisture in the anus from frequent liquid stools, diarrhea, or escape of small amounts of stool (incontinence or fecal spoilage). Moisture increases the possibility of infections of the anus, especially yeast, particularly in patients with diabetes or HIV. […] Treatment with antibiotics can lead to a yeast infection and irritation of the anus. […] Psoriasis can irritate the anus. […] Abnormal passageways (fistulas) from the small intestine or colon to the skin surrounding the anus can form as a result of medical conditions (such as Crohn’s disease), and these fistulas bring irritating fluids to the anal area. […] Rarely, tumors of the anus (anal cancer) may be the cause of itching.

• #59 Itchy bottom | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/skin-hair-and-nails/itchy-bottom/

  Itchy bottom is a strong urge to scratch the skin around your bottom (anus). […] The cause of itchy bottom isnt always known. If it gets better quickly without treatment, it may be the result of a short term issue. […] Its rare for an itchy bottom alone to be a sign of something more serious. […] An itchy bottom thats worse at night can be caused by threadworms. This is often the case for children. […] Sometimes an itchy bottom can be a symptom of another problem or condition. This includes: skin conditions like eczema or psoriasis if you have itching elsewhere on the body too, threadworms (especially in children) symptoms will get worse at night and there will be worms in poo (they look like bits of thread), haemorrhoids (piles) swellings in and around the anus, as well as pain and blood when pooing, bowel incontinence or diarrhoea can cause poo leaking or pooing you can not control, sexually transmitted infection (STI) like genital warts can cause sores, swelling and irritation, ringworm can cause sores, swelling and irritation. […] Some long-term medications can also cause an itchy bottom. For example, steroid creams or peppermint oil. […] You should also speak to a GP if your itchy bottom is caused by an underlying condition like piles.

• #60 Anal Itch (Pruritus Ani) – Harvard Health

  https://www.health.harvard.edu/a_to_z/anal-itch-pruritus-ani-a-to-z

  Treatment with antibiotics Some powerful antibiotics that work against many different bacterial species can trigger anal itch by disturbing the normal ecology of the intestines. […] A local chemical irritation or skin allergy in the anal area In sensitive people, chemicals and medications that are applied to the anal area can cause local irritation or allergic reactions. […] Intense cleaning after a bowel movement Although the anal area should be cleaned after every bowel movement, this cleaning must be gentle. […] Less often, anal itch is a symptom of some illness or condition that either affects the anal area alone, or involves larger areas of the digestive tract or skin. […] Local diseases and conditions involving lower portions of the digestive tract These include hemorrhoids, skin tags, rectal fistulas, rectal fissures, and, rarely, anorectal cancer. […] Infections and parasites These include pinworms (especially in children), scabies, pediculosis, condyloma acuminata, and skin infections due to Candida or tinea fungi. […] Skin problems These include psoriasis, eczema, and seborrhea.

• #61

  https://www.kushae.com/blogs/news/why-is-my-butt-itchy-8-causes-of-an-itchy-anus?srsltid=AfmBOopEoyizAOW6tY8sDRbvZkPhM_7MNQqsgi-mD9JZtA1EnDEvMpI7

  Itchy butt, or pruritis ani as it is medically known, is itching or irritation of the skin surrounding the anus. An itchy butt or anus can happen because of diet, hemorrhoids, diabetes, and more. […] Sugary foods, caffeine, spicy foods, and dairy can irritate your digestive system and poop, causing itching or irritation to your anus. […] People with diabetes can sometimes suffer from nerve damage. This nerve damage can cause itchiness around the anus because diabetes raises the sugar levels in the blood, and this can damage the nerves and blood levels around the anus. […] Hemorrhoids are swollen veins in the lower rectum or the anus; they can cause anal itching, pain, and bleeding. […] Antibiotics can cause anal itching because they can negatively affect the natural balance of bacteria in the gut by killing the 'good bacteria’ that help with digestion.

• #62 Why does your bum itch? Common causes of an itchy bottom

  https://patient.info/news-and-features/common-causes-of-an-itchy-bottom

  Many people will be aware of the uncomfortable effects felt following a spicy meal the night before. However, there are a few other foods that can result in an itchy bottom. Some fruits, especially citrus fruits, grapes and tomatoes, are known to be triggers for pruritus ani. […] The drug colchicine (which is used for gout), as well as peppermint oil, can also cause pruritus ani as a side-effect. […] The bottom becoming overly hot and sweaty can definitely exacerbate an itch. […] Stress and anxiety often worsen anal itching, especially at night time. […] Lastly, there is a very well known phenomenon known as the 'itch-scratch cycle’. Essentially this means that the more you scratch something, the itchier it becomes.

• #63 Why does your bum itch? Common causes of an itchy bottom

  https://patient.info/news-and-features/common-causes-of-an-itchy-bottom

  Many people will be aware of the uncomfortable effects felt following a spicy meal the night before. However, there are a few other foods that can result in an itchy bottom. Some fruits, especially citrus fruits, grapes and tomatoes, are known to be triggers for pruritus ani. […] The drug colchicine (which is used for gout), as well as peppermint oil, can also cause pruritus ani as a side-effect. […] The bottom becoming overly hot and sweaty can definitely exacerbate an itch. […] Stress and anxiety often worsen anal itching, especially at night time. […] Lastly, there is a very well known phenomenon known as the 'itch-scratch cycle’. Essentially this means that the more you scratch something, the itchier it becomes.

• #64 Anal itching – Causes of itchy bottom | Clear Chemist

  https://www.clearchemist.co.uk/az-health/anal-itching/causes-of-itchy-bottom

  Skin conditions that can be associated with itchy bottom include: psoriasis where red, flaky, crusty patches of skin develop because your skin cells reproduce too quickly […] Systemic conditions affect your whole body and can sometimes make your bottom feel itchy. […] Some types of medication, including those applied directly to your skin (topical), may make your bottom feel itchy. […] Medicines that may cause itchy bottom or make your symptoms worse include: peppermint oil which is sometimes used to help relieve stomach cramps.

• #65 Anal Itching Causes, Symptoms, Diagnosis, Treatment | Proctocure

  https://proctocure.com/pruritus-ano-anal-itching/

  Anal itch may be a side effect of certain medications, such as some antibiotics, that can cause frequent diarrhea. […] Excessive or improper use of laxatives can lead to chronic diarrhea and the risk of anal irritation and itch. […] Anal itch can be a symptom of hemorrhoids. […] Faeces in contact with the perianal skin causes irritation because the bacteria in it produce chemicals that are highly irritant. […] Up to 40% of cases of Pruritus ani cases are caused by perianal conditions (such as fistula, Crohn’s disease, hemorrhoids and very rarely cancers) with only 5% caused by generalized skin diseases. […] Inadequate cleaning of the perianal region after defaecation is the commonest cause, aggravated by anal skin tags, or prolapsed piles. […] It is also important to know whether any other members of the family are affected as worms that can cause this symptom often affect more than one member of the family.

• #66 Itchy bottom | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/skin-hair-and-nails/itchy-bottom/

  Itchy bottom is a strong urge to scratch the skin around your bottom (anus). […] The cause of itchy bottom isnt always known. If it gets better quickly without treatment, it may be the result of a short term issue. […] Its rare for an itchy bottom alone to be a sign of something more serious. […] An itchy bottom thats worse at night can be caused by threadworms. This is often the case for children. […] Sometimes an itchy bottom can be a symptom of another problem or condition. This includes: skin conditions like eczema or psoriasis if you have itching elsewhere on the body too, threadworms (especially in children) symptoms will get worse at night and there will be worms in poo (they look like bits of thread), haemorrhoids (piles) swellings in and around the anus, as well as pain and blood when pooing, bowel incontinence or diarrhoea can cause poo leaking or pooing you can not control, sexually transmitted infection (STI) like genital warts can cause sores, swelling and irritation, ringworm can cause sores, swelling and irritation. […] Some long-term medications can also cause an itchy bottom. For example, steroid creams or peppermint oil. […] You should also speak to a GP if your itchy bottom is caused by an underlying condition like piles.

• #67 Itchy Bum at Night: Causes, Treatments, When to See a Doctor

  https://www.healthline.com/health/itchy-bum-at-night

  There are many causes for an itchy bum at night, but if your symptoms persist through OTC treatment, it may be time to talk with a doctor. […] Itching may be more common at night due to activities that typically precede sleep: dinner, drinking, use of the toilet, and showering, for example. Additionally, we may become more sensitive to irritants at night since there is less stimulus to distract us than throughout the rest of the day. […] If you find that your anal area is itching at night, its possible that you might be experiencing hemorrhoids or anal fissures. These are preexisting conditions that may cause itch and could be exacerbated by nighttime use of the toilet, diet, or nighttime sweating. […] A number of foods can irritate the anus and produce an itch. This includes, but is not limited, to: spices and spicy foods, coffee (both caffeinated and decaffeinated), tea, soda, milk, alcoholic beverages (especially beer and wine), chocolate, citrus fruits, vitamin C tablets, tomatoes.

• #68 Anal itching – Causes, Treatment and Prevention

  https://australian-bodycare.com/blogs/guides/anal-itching-gic?srsltid=AfmBOorLJdnopd8jP27P8cVVajeoqcK7bgmP1xayi1tex4Ey-QvDP_Sq

  Haemorrhoids are one of the most common causes, and will often lead to itching round the anus. […] Poor hygiene may result in itching around the anus. […] Excessive hygiene can actually cause anal itching too. […] Threadworms cause itching in the anus not least in the evening and at night. […] Cuts in the anal opening (also called fissures) can cause itching. […] Boils near the anus will normally also cause itching. […] Skin diseases such as psoriasis may cause itching dry skin anywhere on the body, and thus round the anus too. […] Eczema near the anus will normally also cause itching. […] Fungal or bacterial infections usually cause itching, so if you have a fungal or bacterial infection in or around the anus, it will itch. […] Outpouching of the anal mucous membrane (anal prolapse) or outpouching of the rectum (rectal prolapse) can cause itching at the anus. […] Antibiotics may cause anal itching. […] Some foods such as coffee, chocolate, beer, nuts, spicy food or dairy products may cause anal itching in some people.

• #69

  https://www.kushae.com/blogs/news/why-is-my-butt-itchy-8-causes-of-an-itchy-anus?srsltid=AfmBOopEoyizAOW6tY8sDRbvZkPhM_7MNQqsgi-mD9JZtA1EnDEvMpI7

  Excessive sweating around the anus while working out or living in a hot and humid climate can cause your anus to itch. […] Chafing happens when the skin around the anus rubs against clothing or itself, causing friction, irritation, and itching. […] Sexually transmitted diseases such as gonorrhea, anal herpes, anal warts, and crabs can cause your anus to itch. […] Too 'many’ frequent trips to the bathroom can irritate your anus, causing it to itch; this is especially true for those suffering from chronic diarrhea.

• #70 Gastroenterology Specialists Honesdale: 10 Causes of Anal Itch – Northeastern Gastroenterology Associates

  https://www.gastrohonesdale.com/blog/why-does-my-anus-itch

  Another potential cause of anal itching is your underwear. If your underwear is made of synthetic fibers, it could lead to too much moisture down below, which can cause chafing and other problems. […] Hemorrhoids are a common cause of anal itching, causing a burning pain sensation around your anus as well. […] Anal fissures are tiny sores or cuts (i.e., fissures) that can open up in your anus causing itchiness and pain. […] Anal warts can cause itching, and can be caused by the human papillomavirus (HPV) a sexually transmitted disease. […] Pinworms are small worms that can get in your digestive system through contaminated foods, bed linens, and other places that can cause itching at night. […] People who suffer from psoriasis, its possible to get this around ones anus as well. […] There are plenty of other causes of anal itch. Those may include: Antibiotics that cause diarrhea, Anxiety, Anemia, Hyperthyroidism, Leukemia, Type 2 diabetes.

• #71 Anal Itching: Causes, Prevention and Treatment Tips – Scripps Health

  https://www.scripps.org/news_items/7231-what-are-the-causes-of-anal-itching

  Personal habits, such as what we eat and wear, how we clean ourselves and products we use, can irritate the skin around the anus. […] Specific health conditions that can aggravate your anus area include: Type 2 diabetes, leukemia and lymphoma, kidney failure or liver disease, hyperthyroidism, anemia, anxiety and stress.

• #72 Pruritus Ani (Itchy Bottom) – Causes & treatment | Glasgow Colorectal Centre

  https://www.colorectalcentre.co.uk/pruritus-ani-itchy-bottom.html

  Pruritus ani means a chronic (persistent) itchy feeling around the anus. It is commonly know as itchy bottom or itchy bum. The main symptom is an irresistible urge to scratch the anus or bottom. The urge to scratch may occur at any time, but most often happens after a bowel movement or at night (particularly just before falling asleep). The itch may be made worse by heat, wool, moisture, leaking, soiling, stress and anxiety. […] Several factors may be at fault although frequently, no specific cause can be found. Common factors that may lead to pruritus ani include the following: Excessive cleaning of the anal area. This can wash away natural oils in the skin that protect it. […] Bowel problems such as perianal infection/fistula, haemorrhoids and anal fissure may cause itch, either directly or because of moisture from discharge of mucus, stool or pus.

• #73 Why does your bum itch? Common causes of an itchy bottom

  https://patient.info/news-and-features/common-causes-of-an-itchy-bottom

  Many people will be aware of the uncomfortable effects felt following a spicy meal the night before. However, there are a few other foods that can result in an itchy bottom. Some fruits, especially citrus fruits, grapes and tomatoes, are known to be triggers for pruritus ani. […] The drug colchicine (which is used for gout), as well as peppermint oil, can also cause pruritus ani as a side-effect. […] The bottom becoming overly hot and sweaty can definitely exacerbate an itch. […] Stress and anxiety often worsen anal itching, especially at night time. […] Lastly, there is a very well known phenomenon known as the 'itch-scratch cycle’. Essentially this means that the more you scratch something, the itchier it becomes.

• #74 Why does your bum itch? Common causes of an itchy bottom

  https://patient.info/news-and-features/common-causes-of-an-itchy-bottom

  Many people will be aware of the uncomfortable effects felt following a spicy meal the night before. However, there are a few other foods that can result in an itchy bottom. Some fruits, especially citrus fruits, grapes and tomatoes, are known to be triggers for pruritus ani. […] The drug colchicine (which is used for gout), as well as peppermint oil, can also cause pruritus ani as a side-effect. […] The bottom becoming overly hot and sweaty can definitely exacerbate an itch. […] Stress and anxiety often worsen anal itching, especially at night time. […] Lastly, there is a very well known phenomenon known as the 'itch-scratch cycle’. Essentially this means that the more you scratch something, the itchier it becomes.

• #75 Anal Itching – Digestive Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/digestive-disorders/anal-and-rectal-disorders/anal-itching

  Itching of the anus (the opening at the end of the digestive tract where stool leaves the body) and the skin around the anus (perianal skin) is called anal itching or pruritus ani. […] The most common causes of anal itching are Unknown (the majority) and Related to hygiene. […] Most often, doctors do not identify a specific disorder as the cause of anal itching, and the itching goes away without treatment after a period of time. Many of the other cases of anal itching are due to hygiene issues. […] Only a very few cases are caused by a specific disorder, such as pinworms or a fungal infection (such as candidiasis caused by several species of the yeast Candida). […] Of the specific causes, only rare causes such as inflammatory bowel disease and cancer of the skin around the anus are considered serious.

• #76 Itchy bottom

  https://www.nhs.uk/conditions/itchy-anus/

  Causes of an itchy bottom […] There’s not always a clear cause of an itchy bottom. If it gets better quickly, it might have been caused by something that does not need treatment, like sweating a lot in hot weather. […] If it lasts longer, you might be able to get an idea of the cause from any other symptoms you have. See a GP if you’re worried or if your symptoms keep coming back. […] It’s unusual for an itchy bottom to be caused by something serious. But rarely, it may be a sign of conditions like diabetes or anal cancer, so it’s important to get it checked by a GP.

• #77 Pruritus ani (itchy anus)

  https://dermnetnz.org/topics/itchy-anus

  Itchy anus can be classified as being primary (idiopathic, no obvious cause) or secondary. […] Factors contributing to an itchy anus may include: Perianal hypertrichosis, Perianal hyperhidrosis, Deeply set anal opening (so-called funnel-shaped anus), Irritating stools particularly if there is diarrhoea or faecal leakage, and if acidic or highly spiced foods are eaten, Overzealous cleaning and use of personal care products, Systemic disease diabetes mellitus, uraemic pruritus, liver disease, thyroid disease, haematological disorders. […] Any common skin disease may involve the anogenital area resulting in secondary anal itching, and this may be the only site of involvement. Anal itch is unrelated to haemorrhoids or other anal conditions. […] Skin infections: Bacterial perianal streptococcal dermatitis, erythrasma; Fungal Candidal intertrigo, dermatophyte such as Trichophyton rubrum; Viral anogenital warts. […] Infestations: Pinworms. […] Inflammatory skin conditions: Dermatitis atopic, seborrhoeic, contact (irritant or allergic), Flexural psoriasis, Lichen sclerosus, Lichen planus. […] Skin tumours: Anal squamous cell carcinoma, Extramammary Paget disease of the skin.

• #78 Anal Itching: Treatment, Causes, Symptoms & Home Remedies

  https://www.medicinenet.com/anal_itching/article.htm

  Anal itching (known medically as pruritus ani) is irritation of the skin at the opening of the anal canal through which stool exits the body which leads to itching. […] An itchy bottom can be caused by irritating chemicals in the foods we eat, such as are found in spices, hot sauces, and peppers. […] Anal itching also can be caused by the irritation of continuous moisture in the anus from frequent liquid stools, diarrhea, or escape of small amounts of stool (incontinence or fecal spoilage). Moisture increases the possibility of infections of the anus, especially yeast, particularly in patients with diabetes or HIV. […] Treatment with antibiotics can lead to a yeast infection and irritation of the anus. […] Psoriasis can irritate the anus. […] Abnormal passageways (fistulas) from the small intestine or colon to the skin surrounding the anus can form as a result of medical conditions (such as Crohn’s disease), and these fistulas bring irritating fluids to the anal area. […] Rarely, tumors of the anus (anal cancer) may be the cause of itching.

• #79

  https://www.womenshealthmag.com/health/a25658379/why-is-my-butthole-itchy/

  Many experts also speculate that anal itching might be neurological, especially in the case of patients with back issues. […] As most anal itching is due to fecal contamination in the area around the anus, it is important to keep that area as clean as possible, says Dr. Brown. […] You can also prevent anal itching by avoiding foods that cause diarrhea such as coffee or dairy.

• #80 11 Common Reasons Why Your Butt Might Itch

  https://www.health.com/condition/skin-conditions/itchy-butt

  Itchy Butt Caused by Hygiene Issues: Itching in the perianal region (around the anus) often depends on how you wipe after a bowel movement. Not wiping well enough can leave behind fecal matter and moisture, Brian Kim, MD, Vice Chair of Research at the Icahn School of Medicine at Mount Sinai, told Health. […] Chronic skin conditions can cause inflammation and itching anywhere, including the perianal region. […] Anal eczema is likely to have an underlying or secondary disease. […] Causes of contact dermatitis include soaps, detergents, perfumes, latex, fragrances, dyes, preservatives, nickel, cobalt, and certain foods. […] Certain long-term health conditions can contribute to anal itching and inflammation. For example, diabetes and autoimmune diseases can make people more vulnerable to bacterial or fungal infections. […] Nerve damage may also be a cause for an itchy bum. „We have some suspicion that some of this type of itching is neurologic,” said Dr. Kim. […] Having an itchy butt isn’t usually a reason to jump to scary conclusions. However, in rare cases, anal itchiness can also be a sign of cancer.

• #81

  https://www.healthychildren.org/English/health-issues/conditions/skin/Pages/Anal-Itching-in-Young-Children.aspx

  The most common cause of anal itching is pinworms. Around 20% of all children in the United States will be affected by pinworms at some time in their lives. […] Pinworms are very small parasites that can live in the intestines of humans. They are the most common worm infection in the United States. […] Pinworm infections spread when a child ingests microscopic pinworm eggs. This usually happens when a child who is infected gets pinworm eggs on their hands while using the toilet. […] Perianal strep (A Streptococcus) infection is common in children between 6 months and 10 years old. It leads to a rash, itching and sometimes pain. […] Skin irritation is another common cause of anal itch. The cause for the irritation can be many things, Examples include tight clothing, poor toilet hygiene or products like packaged wipes, bubble bath, soaps or cleaning products.

• #82 Itchy Bum at Night: Causes, Treatments, When to See a Doctor

  https://www.healthline.com/health/itchy-bum-at-night

  Children can be particularly susceptible to experiencing itchiness around their bottoms at night. The following items are likely causes: threadworms, poor hygienic practices (including improper washing of hands and wiping of anus), toy sharing (which can contribute to the spread of bacteria and threadworms).

• #83

  https://www.healthychildren.org/English/health-issues/conditions/skin/Pages/Anal-Itching-in-Young-Children.aspx

  The most common cause of anal itching is pinworms. Around 20% of all children in the United States will be affected by pinworms at some time in their lives. […] Pinworms are very small parasites that can live in the intestines of humans. They are the most common worm infection in the United States. […] Pinworm infections spread when a child ingests microscopic pinworm eggs. This usually happens when a child who is infected gets pinworm eggs on their hands while using the toilet. […] Perianal strep (A Streptococcus) infection is common in children between 6 months and 10 years old. It leads to a rash, itching and sometimes pain. […] Skin irritation is another common cause of anal itch. The cause for the irritation can be many things, Examples include tight clothing, poor toilet hygiene or products like packaged wipes, bubble bath, soaps or cleaning products.

• #84

  https://link.springer.com/article/10.1007/s43472-024-00130-z

  Anal pruritus is a frequent disorder accounting for many proctological consultations, affecting mainly middle-aged males. […] The most frequent causes are irritant factors such as anal over-hygiene and some foods, faecal soiling due to incontinence, and proctological diseases such as haemorrhoids. […] Candida infections of the anus and dermatological diseases including contact dermatitis are also frequent. […] About 100 possible causes have been identified. It can be classified into primary (idiopathic) or secondary. […] Main secondary causes can be classified into local irritation, infections, proctological diseases, neoplastic lesions, dermatological and systemic diseases, and other aetiologies. […] Psychological factors can also be implied. […] Secondary causes are given in more detail in Table 1 and are discussed through history and examination. […] The treatment relies on the identification of a potential aetiology, and should be based on a step-up approach.

• #85 Pruritus Ani

  https://pmc.ncbi.nlm.nih.gov/articles/PMC4755774/

  Pruritus is a symptom of many sexually transmitted diseases, including herpes and condyloma acuminata. […] Inflammatory conditions include systemic skin processes that can affect the perianal region, in addition to other parts of the body. […] Several systemic diseases can present with generalized pruritus as well as pruritus ani. […] Any anal or perianal neoplasm can present with symptoms of pruritus ani, and up to half of patients with perianal Paget’s or Bowen’s disease have pruritus. […] Primary or idiopathic pruritus is invoked when no specific pathologic etiology can be blamed for the patient’s symptoms. […] A variety of associations have been made with patients complaining of pruritus ani, including loose stools, fecal soilage, increased water intake, exaggerated rectoanal inhibitory reflex, earlier incontinence to saline infusion, certain foods, overzealous hygiene, inadequate hygiene, dyes, perfumes, and various cleansing regimens. […] This extensive and sometimes contradictory list makes it clear that our understanding of pruritus ani is severely lacking.

• #86 Itchy bottom

  https://www2.hse.ie/conditions/itchy-bottom/

  An itchy bottom (anus) is not usually a sign of anything serious. […] In rare cases, it can be a sign of a bigger health issue. […] An itchy bottom that’s worse at night is often caused by threadworms, especially in children. […] Your GP will try to work out the cause of your itching. […] Depending on the cause, your GP might: suggest trying things to ease the itching yourself for a little longer. […] There’s not always a clear cause of an itchy bottom. […] If it lasts longer, you might be able to get an idea of the cause from any other symptoms you have. […] An itchy bottom on its own is not usually related to a serious condition. But rarely, it may be a sign of something like anal or bowel cancer.

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