Materiały źródłowe

• #1 Head lice – Diagnosis & treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/head-lice/diagnosis-treatment/drc-20356186

  According to the American Academy of Pediatrics guidelines, the gold standard for diagnosing head lice is to identify a live nymph or adult louse. […] The guidelines recommend examining wet hair lubricated with hair conditioner or another product. Your child’s health care provider will carefully comb your child’s hair with a fine-toothed comb (nit comb) from the scalp to the end of the hair. If no live louse is found, the provider will likely repeat the entire exam at a second appointment. […] Your health care provider will also look for nits in your child’s hair. To find nits, your child’s provider may use a specialized light called a Wood’s light, which causes nits to appear bluish. But the identification of nits does not necessarily confirm the diagnosis of live lice. […] A live nit needs to be near the scalp to survive. Nits found more than about 1/4 inch (6 millimeters) from the scalp are likely dead or empty. Suspect nits can be examined under a microscope to determine if they’re living.

• #1 Head Lice

  https://pmc.ncbi.nlm.nih.gov/articles/PMC5165061/

  Wet combing is the most sensitive method of establishing the diagnosis and monitoring treatment. […] Inspection alone does not suffice for diagnosis, even if the entire head is examined. […] Active infestation is therefore best identified using the wet combing technique using a nit detection comb (tooth spacing 0.2 mm). […] One live louse is enough to make the diagnosis. […] Misinterpretations are frequent. In the USA, only 59% of all samples sent to an expert center contained typical lice or eggs.

• #1 Head Lice: Signs, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/10824-head-lice

  Head lice are tiny, parasitic insects that can live in your hair. They bite your skin to suck your blood and attach their eggs (called nits) to your hair, close to your scalp. […] You can check for lice by running a fine-toothed comb or a special head lice comb slowly through your childs wet hair. Inspect the comb for lice and their eggs after each time you pull it through. Lice are most commonly found at the back of your head and neck, and near your ears. […] The best way to treat lice is with an over-the-counter or prescription shampoo, lotion or cream that kills them. Follow the directions on how to apply it and how often to use it. […] Talk to your childs healthcare provider if youre unsure which is best to use or if the first treatment you try isnt working. Lice are becoming resistant to treatment. It may take a combination of treatments to get rid of them completely. […] Call your childs healthcare provider if treatments arent working or if your child has signs of an infection. These include: Fever, Sores that wont heal or are pus-filled, Pain or tenderness on their head, Redness or swelling on their scalp.

• #1 Head lice: Causes, symptoms, and treatments

  https://www.medicalnewstoday.com/articles/164492

  Head lice are tiny, wingless, parasitic insects that live in human hair. […] Head lice or nits are often found near the neckline at the back of the head and behind the ears. […] A diagnosis can be confirmed if a live louse is found crawling on the head, but this can be difficult because lice avoid light and they can crawl quickly. […] A fine-toothed louse comb may help identify live lice. The comb works better on wet hair, but can also be used on dry hair to trap even small lice. […] The American Academy of Dermatology (AAD) recommends finding head lice with a nit comb by following these three steps: Wet the hair, as it can make the lice easier to see and prevent them from scurrying away. […] After each comb-through, wipe the comb on a wet paper towel. Examine the scalp, comb, and paper towel carefully.

• #1 Head lice: Diagnosis and treatment

  https://www.aad.org/public/diseases/a-z/head-lice-treatment

  Diagnosing head lice at home. If you are concerned that someone has head lice, you can usually diagnose this at home. You are looking for adult lice and their eggs (called nits). Youre more likely to see nits than adults because nits are firmly attached to the hair and do not move. If the person has adult lice or nits, you will see the following: Adult lice: These look like one or more light-brown objects that resemble sesame seeds, often moving quickly. You can find these on the scalp or the hair. Eggs: These are yellow, brown, or tan objects that look like tiny seeds and appear to be cemented to individual hairs close to the scalp. If an egg has hatched, the seed-like object will be clear. […] If the at-home treatment does not work or this seems more than you can handle, you should see a dermatologist for treatment. Your dermatologist may recommend a product that you can buy without a prescription or a prescription medicine.

• #1 Head lice diagnosis: At the clinic or at home | Lice Clinic Europe

  https://licecliniceurope.com/diagnosis

  We offer the only two screening options that guarantees 100% certainty: 1) for at home 2) in our clinic. […] With our unique Comb Kit, you can easily comb out over 95% of the lice and nits in one combing. […] With the video „Do I have head lice?” and the photos below, you can easily determine what you found and what this means. […] Especially those tiny eggs (nits) can be difficult to recognize and distinguish. […] Nits are brown, not black, and always have the same size and oval shape with a 'tail’ attached. Nits are firmly glued to the hair: Dirt, on the other hand, is irregular and uneven in shape and size and freely scatters in the hair or on the scalp. […] A viable nit always meets all three of the following conditions: Brown, oval/droplet-shaped; Firmly attached to the hair; A few millimeters, maximum 1 cm away from the skin.

• #1 About Head Lice | Lice | CDC

  https://www.cdc.gov/lice/about/head-lice.html

  Finding a live nymph (baby louse) or adult louse on the scalp or hair is the best way to diagnose a head lice infestation. […] A fine-toothed louse comb may help you find lice. […] If you do not see crawling lice, look for nits attached firmly within inch of the base of hair shafts. […] Nits that are attached more than inch from the base of the hair shaft are almost always hatched or dead. […] Although head lice and nits can be visible with the naked eye, a magnifying lens may help to find crawling lice or nits. […] If you do not see nymphs or adults, and the only nits found are more than inch from the scalp, then the infestation is probably old and does not need treatment.

• #1 Pediculosis and Pthiriasis (Lice Infestation) Workup: Approach Considerations

  https://emedicine.medscape.com/article/225013-workup

  Dermoscopy of nymph-containing eggs show ovoid and brown coloration that can be used to reliably differentiate nymph-containing eggs from empty cases or pseudonits. […] On dermoscopy empty cases are translucent. […] Histology is rarely required for diagnosis. Examination of a bite shows intradermal hemorrhage and a deep, wedge-shaped infiltrate with many eosinophils and lymphocytes.

• #1 Pediculosis and Pthiriasis (Lice Infestation) Workup: Approach Considerations

  https://emedicine.medscape.com/article/225013-workup

  The diagnosis of head lice relies on the identification of living lice. […] They typically are detected by thoroughly combing wet hair from the scalp using a fine-tooth comb with teeth spaced about 0.2 mm apart; lice most often are found at the back of the head or behind the ears. Nits, which are more frequently observed, are oval, grayish-white eggs attached to the base of hair shafts. Each adult female louse lays 3 to 5 eggs per day, resulting in a significantly higher number of nits compared to lice, which does not indicate the severity of the infestation. […] Because the diagnosis of infestation requires identification of a live louse and/or a viable nit, examining suggestive particles under the microscope confirms the diagnosis. […] A Wood’s lamp examination of the area considered to be infested shows yellow-green fluorescence of lice and nits.

• #1 Head lice. Pediculosis capitis

  https://dermnetnz.org/topics/head-lice

  It is important to identify the lice (or nits) to make a correct diagnosis. The lice can be hard to detect, and there are usually only 10-20 adult lice in each colony. […] Look for lice and nits behind and above the ears and on the back of the neck. […] It is easier to identify (and remove) live lice by wet combing using a lice comb, compared to visual inspection alone. […] Failure to eradicate lice is a common and frustrating problem. It can be due to: […] Misdiagnosis.

• #1 Pediculosis and Pthiriasis (Lice Infestation) Differential Diagnoses

  https://emedicine.medscape.com/article/225013-differential

  True nit infestation must be distinguished from hair casts (pseudonits). Hair casts are ringlike remnants of the inner root sheath of the hair follicle. They are amorphous and freely moveable along the hair fiber. […] Other problems to be considered in the differential diagnoses of head louse infestation include the following: Dandruff, Fibers, Scabs, Desquamated cells, Dirt, Dried hairspray/gel, Dermatophyte infection, Piedra (black piedra from Piedraia hortae, white piedra from Trichosporon asahii and other species of Trichosporon), Hair shaft abnormalities (ie, monilethrix, trichorrhexis nodosa), Delusions. […] Other problems to be considered in the differential diagnoses of pubic louse infestation include the following: Dermatophyte infection, Folliculitis, Delusions of parasitosis, Contact dermatitis, Conjunctivitis (if eyelash involvement).

• #1 Head Lice: How to Identify Head Lice and Nits

  https://www.licefreenoggins.com/head-lice-how-to-identify-head-lice-and-nits/

  Every parent of young children should know how to identify head lice and nits (eggs). Why? Roughly 3-12 million Americans will get head lice this year. Will you be able to identify head lice if you or a family member gets lice? […] Identifying head lice can be tricky. In fact, you may not be able to detect head lice unless you have seen it before or you really know what you’re looking for. Frequently, parents take a quick look and see nothing. Others might misdiagnose head lice when they see white specs in the hair, which may be scalp debris such as dandruff, DEC plugs or hair casts. […] Lice eggs (nits) are never white. Empty nit shells may appear to be translucent (see-through) which is why they seem to take on the color of the hair. Viable nits appear in shades of brown, never translucent or opaque.

• #1 Patient education: Head lice (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/head-lice-beyond-the-basics/print

  Head lice are diagnosed by examination of the scalp and hair (picture 1). Special „nit combs” can be used to assist with the diagnosis. […] Finding eggs (nits) without lice does not necessarily mean that there is an active infestation; nits can be found for months after lice are treated. Because lice lay eggs at the base of the hair shaft, the identification of nits within ¼ inch of the scalp suggests (but does not confirm) an active infestation. […] A doctor or nurse can examine the head under a special lamp, which causes nits to glow a pale blue color. If you are unsure whether your child has lice, make an appointment for your child to be examined before you start treatment.

• #1 Head lice – Diagnosis & treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/head-lice/diagnosis-treatment/drc-20356186

  If the provider doesn’t find any live nits, they’re probably left from a previous case of head lice and don’t need to be treated. […] See your family’s health care provider or pediatrician if you suspect that your child has head lice. The provider will examine your child’s scalp and look for a live nymph or adult louse to determine if he or she has head lice. The provider can carefully inspect your child’s hair. If necessary, the provider can examine suspect items under a microscope before confirming that head lice are present.

• #1

  https://www.healthychildren.org/English/health-issues/conditions/from-insects-animals/Pages/signs-of-lice.aspx

  Head lice are a common problem, especially among school-aged children and their families. […] Head lice can be treated at home, but it’s important to check with the doctor first. […] Regular checks for head lice are a good way to spot head lice before they have time to multiply and infest (are present in large numbers) your child’s head. […] Check with your child’s doctor before beginning any head lice treatment. The most effective way to treat head lice is with head lice medicine. […] Head lice medicine should be used only when it is certain that your child has living head lice. […] Check with your child’s doctor before beginning any treatment. […] All household members and close contacts should be checked and treated for head lice if necessary.

• #1 Head lice and nits | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/skin-hair-and-nails/head-lice-and-nits/

  Head lice can be difficult to spot, even when the head is closely inspected. […] The only way to be sure someone has head lice is to find a live louse by combing their hair with a special fine-toothed comb. This is called detection combing. […] Detection combing should usually be done 2 or 3 days after finishing treatment, and again another 7 days after that, to check for any live head lice. […] Your pharmacist can advise you about treatments for head lice and nits if you’re not sure which is best for you or your child.

• #1 Head Lice Management Guidelines–UC IPM

  https://ipm.ucanr.edu/PMG/PESTNOTES/pn7446.html

  Diagnosis of a head lice infestation requires the detection of a living louse crawling on the scalp. The presence of nits is not a reliable indication of an active infestation that needs to be treated. […] The most common sign of head lice infestation is itching on the back of the head or neck, which begins 1 to 4 weeks after the initial infestation. It takes that amount of time for sensitivity to louse saliva to develop. […] Detecting head lice can be time consuming, especially when the number of lice present is low. The best way to inspect for head lice is by wet combing the head. […] How can you tell the difference between hatched and unhatched nits? Lice and nits can be seen without magnification, but in order to differentiate hatched and unhatched nits, use a magnifying lens. […] If live lice are found a day after a treatment, then it’s likely they are resistant to the particular product that was used, and a change in active ingredient is recommended.

• #1 Take Care with Head Lice Treatments | Poison Control

  https://www.poison.org/articles/take-care-with-head-lice-treatments

  Choosing a pediculicide is tricky. From time to time, lice develop resistance to particular chemicals. A treatment that works for a while may become ineffective over time as the lice adapt. If your child has lice, consult your pediatrician or the school nurse about the best treatments. If one type of treatment doesn’t work, ask about the next treatment to try. Using the same treatment again might not work.

• #1 Head Lice (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/head-lice.html

  To do this, run a fine-tooth comb through your child’s wet hair one section at a time. […] If medicine doesn’t work and you want to try these methods, talk to your doctor first. […] Head lice spread quickly from person to person, especially in group settings like schools, childcare centers, slumber parties, sports activities, and camps. […] In the past, kids with head lice were kept home from school. But now doctors don’t recommend these „no-nit” policies. […] To get rid of head lice and their eggs, and to help prevent them from coming back: Wash all bed linens, stuffed animals, and clothing used during the 2 days before treatment. […] If your child has lice 2 weeks after you started treatment or if your child’s scalp looks infected, call your doctor. […] Having head lice is not a sign of dirtiness or poor hygiene.

• #2 Head Lice: Signs, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/10824-head-lice

  Head lice are tiny, parasitic insects that can live in your hair. They bite your skin to suck your blood and attach their eggs (called nits) to your hair, close to your scalp. […] You can check for lice by running a fine-toothed comb or a special head lice comb slowly through your childs wet hair. Inspect the comb for lice and their eggs after each time you pull it through. Lice are most commonly found at the back of your head and neck, and near your ears. […] The best way to treat lice is with an over-the-counter or prescription shampoo, lotion or cream that kills them. Follow the directions on how to apply it and how often to use it. […] Talk to your childs healthcare provider if youre unsure which is best to use or if the first treatment you try isnt working. Lice are becoming resistant to treatment. It may take a combination of treatments to get rid of them completely. […] Call your childs healthcare provider if treatments arent working or if your child has signs of an infection. These include: Fever, Sores that wont heal or are pus-filled, Pain or tenderness on their head, Redness or swelling on their scalp.

• #2 Lice and Scabies: Treatment Update | AAFP

  https://www.aafp.org/pubs/afp/issues/2019/0515/p635.html

  Head and pubic lice infestations are diagnosed with visualization of live lice. Nits (lice eggs or egg casings) alone are not sufficient to diagnose a current infestation. […] Physicians should not initiate therapy unless live lice are observed. Finding only nits (lice eggs) on examination does not indicate current infestation. […] The American Academy of Pediatrics does not recommend no-nit policies at schools and day cares because nits alone do not indicate an active infestation. Children should not be kept out of school during treatment, even with active infestation, because the likelihood of transmission is low, and this can result in significant absences. […] Head lice infestation is diagnosed by finding at least one live louse on visual inspection. Visualization can be improved by using a bright light and magnifying lens, and by combing the hair with a lice comb (fine-toothed comb available at most drug stores that is also known as a nit comb) and examining the comb teeth.

• #2 Head lice – including symptoms treatment and prevention | SA Health

  https://www.sahealth.sa.gov.au/wps/wcm/connect/public+content/sa+health+internet/conditions/bites+stings+and+pests/head+lice+-+including+symptoms+treatment+and+prevention

  Head lice are small wingless biting insects which live and breed in human hair and feed by sucking blood from the scalp. […] Many lice infestations cause no symptoms and probably less than half cause itching, so you have to look at the hair to see if lice are present. […] Use a bright light or sunlight to inspect the hair. You may see small white or brown oblong eggs (’nits’) attached to the shafts, and they are difficult to move. The live lice are more difficult to find as they move rapidly away from disturbances in the hair. Adult lice are 2 to 4mm long and whitish brown in colour (see images). […] The best way to check for head lice is to apply a generous amount of hair conditioner (any brand will do), then dry the hair and comb through with a coarse comb to detangle the hair. The conditioner stuns head lice for about 20 minutes. Then use a very fine toothed comb and comb the hair through, wiping it on a tissue regularly so you can check for lice and their eggs.

• #2 Head lice infestations: A clinical update

  https://pmc.ncbi.nlm.nih.gov/articles/PMC2724133/

  The definitive diagnosis of head lice infestation requires the detection of a living louse. A live louse indicates active infestation. The presence of nits only indicates a past infestation that may or may not be currently active. […] Because head lice can move quickly, their detection requires expertise and experience. An Israeli study with experienced parasitologists noted that combing with a fine-toothed louse comb was four times more effective and twice as fast as direct visual examination for the detection of live head lice, and hence, for the diagnosis of head louse infestations. In the study, direct visual examinations alone without combing underestimated active infestations. […] Misdiagnosis of head lice infestations is common. The diagnosis requires detection of live head lice. Detection of nits alone does not indicate active infestation. […] Scalp itchiness can occur following application of a topical insecticide and does not indicate that resistance to treatment or a reinfestation has occurred. Diagnosis of an active reinfestation requires detection of live lice.

• #2 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Diagnosis-of-head-lice.aspx

  Head lice infestation, caused by tiny insects or head lice, are usually diagnosed based on clinical findings. […] Diagnosis of head lice infestation includes observation of eggs or lice, examination under a microscope and so forth. […] Observation of eggs or nymphs, or mature adult lice. […] Since it is difficult to detect a live louse as they can move rapidly through dry hair, wetting the hair may be used. Wet hair makes the louse unable to move. […] The use of a magnifying glass may help. Examination under sunlight or full light is needed to identify the lice or nits over the scalp. […] Lice may also be trapped using a piece of transparent adhesive tape or cellulose tape over the infested area. […] A Wood lamp examination of the infested area shows yellow-green fluorescence of lice and nits. […] Other conditions that mimic head lice infestation have to be ruled out.

• #2 Head Lice Infestation: Causes, Symptoms & Diagnosis

  https://www.healthline.com/health/head-lice

  Head lice infestations are common among young children and their families. […] You or your healthcare provider can diagnose head lice by: checking your hair, close to the scalp, for lice; checking your hair, close to the scalp, for nits; running a fine-toothed lice comb through your hair, starting from the scalp, to catch lice and nits. […] The nits are dark-colored, and hatched lice will be light-colored. […] Adult lice move quickly. You’ll most likely find nits if you find any evidence of head lice on your scalp. […] You can easily differentiate between nits and dandruff flakes or other debris in your hair. Most debris should be removed easily. Nits will seem like they’re cemented to your hair. […] Head lice are contagious. If one person in your household has them, others may too. It’s a good idea to check everyone in the household for signs of lice every few days.

• #2 Head Lice: How to Identify Head Lice and Nits

  https://www.licefreenoggins.com/head-lice-how-to-identify-head-lice-and-nits/

  Every parent of young children should know how to identify head lice and nits (eggs). Why? Roughly 3-12 million Americans will get head lice this year. Will you be able to identify head lice if you or a family member gets lice? […] Identifying head lice can be tricky. In fact, you may not be able to detect head lice unless you have seen it before or you really know what you’re looking for. Frequently, parents take a quick look and see nothing. Others might misdiagnose head lice when they see white specs in the hair, which may be scalp debris such as dandruff, DEC plugs or hair casts. […] Lice eggs (nits) are never white. Empty nit shells may appear to be translucent (see-through) which is why they seem to take on the color of the hair. Viable nits appear in shades of brown, never translucent or opaque.

• #2 Head lice – Diagnosis & treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/head-lice/diagnosis-treatment/drc-20356186

  According to the American Academy of Pediatrics guidelines, the gold standard for diagnosing head lice is to identify a live nymph or adult louse. […] The guidelines recommend examining wet hair lubricated with hair conditioner or another product. Your child’s health care provider will carefully comb your child’s hair with a fine-toothed comb (nit comb) from the scalp to the end of the hair. If no live louse is found, the provider will likely repeat the entire exam at a second appointment. […] Your health care provider will also look for nits in your child’s hair. To find nits, your child’s provider may use a specialized light called a Wood’s light, which causes nits to appear bluish. But the identification of nits does not necessarily confirm the diagnosis of live lice. […] A live nit needs to be near the scalp to survive. Nits found more than about 1/4 inch (6 millimeters) from the scalp are likely dead or empty. Suspect nits can be examined under a microscope to determine if they’re living.

• #2 Head lice diagnosis: At the clinic or at home | Lice Clinic Europe

  https://licecliniceurope.com/diagnosis

  A viable nit is also always completely filled, either with liquid or with the embryo. […] This means that you can still find nits even long after the infestation has been resolved! […] More than 10 days without finding a louse? Then the infestation is resolved! […] A nit always hatches within 7-10 days. In the case of an active infestation, there will always be newly hatched lice within that time.

• #2 Lice – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/lice/diagnosis-treatment/drc-20374404

  During an exam, a health care provider may use a magnifying lens to look for lice. The provider may also use a special light, called a Wood’s light, to check for nits. This light makes the nits easier to spot by making them look pale blue. […] A health care provider may diagnose head lice after finding a live young or adult louse in the person’s hair or on the scalp, or after seeing one or more nits on hair shafts found within 1/4 inch (6 millimeters) of the scalp. […] A health care provider may diagnose pubic lice when they see moving lice or nits on hair in the pubic area or on other areas of coarse hair, such as chest hair, eyebrows or eyelashes. […] Pubic lice can be treated with many of the same nonprescription and prescription treatments used for head lice. […] Whether you use nonprescription or prescription shampoo to kill lice, much of the treatment involves self-care steps you can take at home. These include making sure all the nits are removed and that all clothing, bedding, personal items and furniture are free of lice. […] If you think or know you have lice, avoid sharing personal items, bedding, towels or clothing. Bathe and follow self-care measures, including washing items in hot water.

• #2 Head Lice Fact Sheet – MN Dept. of Health

  https://www.health.state.mn.us/diseases/headlice/headlice.html

  Look closely for nits along the hairline at the back of the head and neck and behind the ears. […] If you have questions about the diagnosis of head lice, call your doctor.

• #2 Head Lice (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/head-lice.html

  Head lice are tiny wingless insects. They live among human hairs and feed on blood from the scalp. […] Head lice are a common problem, especially for kids. They spread easily from person to person, and sometimes are tough to get rid of. […] It’s best to treat head lice right away to prevent them from spreading. […] Look for lice and nits on the scalp, behind the ears, and around the nape of the neck. […] The best way to check is by using a fine-tooth comb on wet hair. […] The two main ways to treat lice are: medicine and removing by hand. […] Medicated shampoos, cream rinses, and lotions are available that kill lice. […] Sometimes lice can be resistant to some medicines, which means the treatment won’t work. […] Removing lice and nits by hand can finish the job if the medicine did not completely rid your child of lice.

• #2 Head lice infestations: A clinical update | Canadian Paediatric Society

  https://cps.ca/documents/position/head-lice

  Definitive diagnosis of head lice infestation requires the detection of a living louse. […] The presence of nits indicates a past infestation that may not be currently active. […] Because head lice move quickly, their detection requires a degree of expertise and experience. […] One Israeli study involving experienced parasitologists found that using a fine-toothed lice comb was four times more effective and twice as fast as visually examining the scalp to detect live head lice and diagnose an infestation. […] Another study documented that health care providers and lay personnel frequently overdiagnose or misdiagnose pediculosis and often fail to distinguish active from past infestations, particularly when relying on nit detection only. […] A viable nit is most likely to be found less than 0.6 cm away from the scalp.

• #2 Pediculosis and Pthiriasis (Lice Infestation) Differential Diagnoses

  https://emedicine.medscape.com/article/225013-differential

  True nit infestation must be distinguished from hair casts (pseudonits). Hair casts are ringlike remnants of the inner root sheath of the hair follicle. They are amorphous and freely moveable along the hair fiber. […] Other problems to be considered in the differential diagnoses of head louse infestation include the following: Dandruff, Fibers, Scabs, Desquamated cells, Dirt, Dried hairspray/gel, Dermatophyte infection, Piedra (black piedra from Piedraia hortae, white piedra from Trichosporon asahii and other species of Trichosporon), Hair shaft abnormalities (ie, monilethrix, trichorrhexis nodosa), Delusions. […] Other problems to be considered in the differential diagnoses of pubic louse infestation include the following: Dermatophyte infection, Folliculitis, Delusions of parasitosis, Contact dermatitis, Conjunctivitis (if eyelash involvement).

• #2 Head Lice: How to Identify Head Lice and Nits

  https://www.licefreenoggins.com/head-lice-how-to-identify-head-lice-and-nits/

  Lice Free Noggins for a free head lice diagnosis. We will quickly assess the picture and let you know if a treatment is necessary. […] Our trained technicians will check each individual and faculty in a quick and efficient manner. When necessary, we can educate staff and teachers about preventative measures and how to recognize early signs of head lice.

• #2 Head lice prevention, diagnosis and treatment | Nursing in Practice

  https://www.nursinginpractice.com/clinical/head-lice-prevention-diagnosis-and-treatment/

  Misdiagnosis is common patients may need to be examined with a magnifying glass. […] Nits alone are also not sufficient to diagnose active head lice, because of the difficulty of distinguishing between dead and live eggs with the naked eye. […] Misdiagnosis of head lice infestation is common. The diagnosis is best made by finding a live nymph or adult louse on the scalp or hair. […] If crawling lice are not seen, finding nits attached firmly within inch of the base of hair shafts suggests, but does not confirm, the person is infested. […] Head lice and nits can be visible with the naked eye, although use of a magnifying lens may be necessary to find crawling lice or to identify a developing nymph inside a viable nit. […] If no nymphs or adults are seen, and the only nits found are more than inch from the scalp, then the infestation is probably old and no longer active it does not need to be treated.

• #2 Patient education: Head lice (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/head-lice-beyond-the-basics/print

  Head lice are diagnosed by examination of the scalp and hair (picture 1). Special „nit combs” can be used to assist with the diagnosis. […] Finding eggs (nits) without lice does not necessarily mean that there is an active infestation; nits can be found for months after lice are treated. Because lice lay eggs at the base of the hair shaft, the identification of nits within ¼ inch of the scalp suggests (but does not confirm) an active infestation. […] A doctor or nurse can examine the head under a special lamp, which causes nits to glow a pale blue color. If you are unsure whether your child has lice, make an appointment for your child to be examined before you start treatment.

• #2 Checking for head lice

  https://www.michigan.gov/emergingdiseases/home/head-lice/diagnosis-testing/401058

  How do you detect or diagnose head lice? […] Careful inspection of the hair and scalp is necessary to see if a person has head lice. […] Head lice are best identified by inspecting the hair and scalp for live lice or nits (eggs attached to the hair shaft close to the scalp). The standard for identifying head lice is finding a live louse on the head. […] Questions about identifying lice or nits should be referred to a health care professional familiar with head lice, such as a school nurse or local health department.

• #2 Pediculosis (head lice)

  https://www.health.vic.gov.au/infectious-diseases/pediculosis-head-lice

  Regular checking using the method known as conditioner and combing allows early detection of head lice and will limit the establishment of large outbreaks. […] Contact tracing is recommended. All household members or people who have had head-to-head contact with the case should be examined for head lice. Preferably, this should be done using the conditioner and combing detection method, and repeated every 2 days for 10 days.

• #2 Head lice – including symptoms treatment and prevention | SA Health

  https://www.sahealth.sa.gov.au/wps/wcm/connect/public+content/sa+health+internet/conditions/bites+stings+and+pests/head+lice+-+including+symptoms+treatment+and+prevention

  Re-treatment after 7 to 10 days is necessary because lice in unhatched eggs may not be killed by the first treatment. If head lice are still found after the second treatment, try another technique or another chemical treatment using a different active ingredient. If infestations persist despite correct insecticide use, seek medical advice on alternative methods of treatment.

• #2 Head Lice: Overview, Treatment Options and Prevention | Nationwide Children’s Hospital

  https://www.nationwidechildrens.org/conditions/head-lice

  Lice lay eggs (nits) on pieces of hair, close to the scalp. They may be yellowish-white to brown in color. You may only see nits on your childs head because lice move fast. […] To treat your childs lice, they may need: Over-the-counter (OTC) or prescription lice medicine. […] Your childs doctor or health care provider can recommend a shampoo, rinse, or lotion to kill lice or help with itching. […] A lot of head lice shampoos are insecticides. That means they have chemicals in them that kill lice. […] After using the medicine, check for lice again in 8 to 12 hours. Use a nit comb to remove dead lice and nits. […] The comb-out method lets you check for nits and lice or remove them after treatment. This method alone may not get rid of lice. Head lice medicine is also needed. […] After each medicine treatment, use the comb-out method every 2 to 3 days for 2 to 3 weeks to remove nits and eggs. […] Call your childs doctor or health care provider if they have: Been treated, but the lice are still active.

• #2 Diagnosis, Treatment, and Management of Head Lice

  https://www.skymd.com/conditions/head-lice

  Human head lice are tiny, wingless ectoparasites that choose humans exclusively for their real estate needs. Lice infestation is called pediculosis. […] Head lice, the most common of the three types, is rarely a cause for concern and will be the primary type covered in this writing. […] Head lice are the most common type of lice and live out their entire lives in human hair. There are six to twelve million cases of head lice every year in the United States, with most of those cases in children between the ages of three and eleven. Poor hygiene has no effect on you or your child’s chances of becoming infested. Head lice do not care if you bathe regularly or not at all. It spreads from direct head-to-head contact and, less commonly, from sharing hats, brushes, coats, or scarves. […] Although there are over-the-counter medications for ridding yourself of head lice, consulting a doctor is a good choice for accurate diagnosis and treatment if you suspect lice. A trained physician can examine pictures or videos and evaluate symptoms to determine if your suspicions are correct.

• #3 Head lice infestations: A clinical update

  https://pmc.ncbi.nlm.nih.gov/articles/PMC2724133/

  The definitive diagnosis of head lice infestation requires the detection of a living louse. A live louse indicates active infestation. The presence of nits only indicates a past infestation that may or may not be currently active. […] Because head lice can move quickly, their detection requires expertise and experience. An Israeli study with experienced parasitologists noted that combing with a fine-toothed louse comb was four times more effective and twice as fast as direct visual examination for the detection of live head lice, and hence, for the diagnosis of head louse infestations. In the study, direct visual examinations alone without combing underestimated active infestations. […] Misdiagnosis of head lice infestations is common. The diagnosis requires detection of live head lice. Detection of nits alone does not indicate active infestation. […] Scalp itchiness can occur following application of a topical insecticide and does not indicate that resistance to treatment or a reinfestation has occurred. Diagnosis of an active reinfestation requires detection of live lice.

• #3 Head Lice (‘Ukus) | Disease Outbreak Control Division

  https://health.hawaii.gov/docd/disease_listing/head-lice-ukus/

  Head lice can be diagnosed by finding a live nymph or adult louse on the scalp or hair of a person. […] There is no laboratory test to confirm head lice. […] Because they move very quickly and avoid light, they may be difficult to find. […] You may be able to find nits about inch from the base of the hairs, but that does not confirm an infestation or require treatment.

• #3 Pediculosis (head lice)

  https://www.health.vic.gov.au/infectious-diseases/pediculosis-head-lice

  Head lice is very common in children. The prevalence of head lice on Australian primary school aged children could be 60 per cent in some areas. […] Early detection makes treatment and control of head lice easier therefore, regular checking is recommended. The most effective detection method for head lice is the conditioner and combing technique. […] Traditional scalp inspection is a poor method of detecting lice. It can result in 30 per cent false positive and 10 per cent false negative findings. […] The technique known as conditioner and combing is the most effective method for detection. This involves combing white hair conditioner through dry, brushed hair. […] The detection of nits (live eggs), especially when close to the scalp, suggests active infestation; however, nits may persist for months after successful treatment.

• #3 Patient education: Head lice (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/head-lice-beyond-the-basics/print

  Head lice are diagnosed by examination of the scalp and hair (picture 1). Special „nit combs” can be used to assist with the diagnosis. […] Finding eggs (nits) without lice does not necessarily mean that there is an active infestation; nits can be found for months after lice are treated. Because lice lay eggs at the base of the hair shaft, the identification of nits within ¼ inch of the scalp suggests (but does not confirm) an active infestation. […] A doctor or nurse can examine the head under a special lamp, which causes nits to glow a pale blue color. If you are unsure whether your child has lice, make an appointment for your child to be examined before you start treatment.

• #3 Head lice prevention, diagnosis and treatment | Nursing in Practice

  https://www.nursinginpractice.com/clinical/head-lice-prevention-diagnosis-and-treatment/

  Misdiagnosis is common patients may need to be examined with a magnifying glass. […] Nits alone are also not sufficient to diagnose active head lice, because of the difficulty of distinguishing between dead and live eggs with the naked eye. […] Misdiagnosis of head lice infestation is common. The diagnosis is best made by finding a live nymph or adult louse on the scalp or hair. […] If crawling lice are not seen, finding nits attached firmly within inch of the base of hair shafts suggests, but does not confirm, the person is infested. […] Head lice and nits can be visible with the naked eye, although use of a magnifying lens may be necessary to find crawling lice or to identify a developing nymph inside a viable nit. […] If no nymphs or adults are seen, and the only nits found are more than inch from the scalp, then the infestation is probably old and no longer active it does not need to be treated.

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