Materiały źródłowe

• #1 Colon polyps – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/colon-polyps/symptoms-causes/syc-20352875

  Most people with colon polyps do not have any symptoms. Colon polyps are often found as a part of routine colorectal cancer screening. […] Symptoms that should prompt an appointment with a healthcare professional include: […] Change in bowel habits. Constipation or diarrhea that lasts longer than a week may mean the presence of a larger colon polyp or cancer. However, several other conditions also can cause changes in bowel habits. […] Change in stool color. Blood can show up as red streaks in the stool or make stool appear black. A change in color also may be caused by certain foods, medicines or dietary supplements. […] Iron deficiency anemia. Bleeding from polyps can happen slowly over time, without visible blood in the stool. Chronic bleeding may lead to iron deficiency anemia, which can cause tiredness and shortness of breath.

• #2 Colon Polyps: Symptoms, Causes, Types & Removal

  https://my.clevelandclinic.org/health/diseases/15370-colon-polyps

  Most colon polyps, and many colorectal cancers, wont cause any symptoms. This is why screening testing for diseases before you have symptoms is so important. Usually, by the time you do have symptoms, the polyp has already turned into cancer. […] Possible symptoms, though uncommon, include: Signs of colorectal bleeding. If you have bleeding polyps, you might notice blood in your poop or when you wipe. A slow bleed might not be visible, but after a while, you might feel it. You might develop iron deficiency anemia, which causes side effects like weakness and fatigue. […] Most colon polyps are sporadic, which means they occur randomly. However, some people have hereditary syndromes, conditions passed down through their families, that cause colon polyps. These syndromes can cause large numbers of certain types of polyps and can carry a higher cancer risk. […] Colon polyps can be serious because of their potential to turn into cancer. But most polyps arent cancerous when theyre found. Some might grow into cancer over time if theyre left untreated. Healthcare providers remove them when they find them to prevent this from happening.

• #3 Colorectal Polyps: Symptoms & Causes | NewYork-Presbyterian

  https://www.nyp.org/digestive/colorectal-diseases/colorectal-polyps

  Colorectal polyps are small, cellular growths that can develop in the lining of the rectum or the colon, the longest part of the large intestine. Most polyps in the colon and rectum are benign (noncancerous). But over time, some colon polyps can become cancerous. […] Colon polyps often dont cause any symptoms, so its important to have regular colorectal cancer screenings, such as a colonoscopy. […] Most individuals will not exhibit any colorectal polyp symptoms. The majority of polyps are discovered during a routine colonoscopy. […] However, some people may exhibit symptoms of colon polyps, including: Blood in the stool. Red streaks in your bowel movements, or black stool, could be an indicator of colon polyps or cancer. Rectal bleeding. Blood on the toilet paper, when you wipe, can be a sign of intestinal bleeding. Diarrhea or constipation. Any prolonged changes in your bowel movements (lasting a week or more) could be a sign of a large colon polyp or cancer. Abdominal Pain Nausea Vomiting Anemia: Chronic bleeding inside the intestine can lead to an iron deficiency. […] If you are experiencing any of the above symptoms, reach out to a gastroenterologist or colorectal surgeon at NewYork-Presbyterian. They can help find the underlying cause and develop a treatment plan.

• #4 Everything you need to know about colon polyps: Symptoms, causes and types | Nebraska Medicine Omaha, NE

  https://www.nebraskamed.com/health/conditions-and-services/gastrointestinal-care/everything-you-need-to-know-about-colon-polyps

  Unfortunately, colon polyps usually don’t cause any symptoms, says Dr. Jabak. Without any symptoms, polyps can develop and get bigger without you knowing. That’s why we recommend screening. […] In rare cases, polyps can ulcerate and cause symptoms such as bleeding. In those cases, you may notice bleeding from the rectum. Some polyps can bleed microscopically, causing iron deficiency anemia. For that reason, if a male or a postmenopausal female develops iron deficiency anemia, their doctor may recommend an endoscopic evaluation for polyps. […] Pre-cancerous polyps have the potential to turn into cancer if given enough time to grow. Pre-cancerous polyps typically take a long time before they progress into cancer. That’s why colonoscopies are recommended. It allows doctors to detect and remove polyps before they become cancerous.

• #5 What Causes Polyps In The Colon (Types, Symptoms, Treatment)

  https://www.hoag.org/specialties-services/digestive-health/diseases-conditions/colon-polyps/

  Most colon polyps dont cause noticeable symptoms, which means people may not know they have polyps unless they are discovered during a screening. However, in certain cases, patients may experience symptoms related to polyps. These symptoms may include: […] In the U.S., polyps are common in adults. According to the National Institutes of Health, its estimated that between 15 and 40 percent of adults have colorectal polyps, with polyps more commonly seen in men than women. However, because polyps generally produce few noticeable symptoms, many of those with polyps may not know they have them. A small percentage of colon polyps develop into colorectal cancer, which makes screening for polyps and colorectal cancer after age 45 especially important. […] Most polyps, including those that can eventually develop into colorectal cancer, produce no noticeable symptoms that might alert you that you to see a doctor. Given that, regular screening for polyps and colon cancer is essential to detect colon polyps before they can become cancerous.

• #6 Colon Polyps – Shore Gastroenterology Associates

  https://shoregastro.com/conditions-and-diseases/colon-polyps/

  According to the National Institute of Diabetes and Digestive and Kidney Diseases, it’s estimated that between 15 to 40 percent of adults will develop colon polyps in their lifetime. […] Very often, polyps have no noticeable signs or symptoms until they have progressed into cancer, which makes early detection of colon polyps essential. […] Most people do not experience colon polyps symptoms until the polyps have progressed into cancer, or until the polyps are very large. […] Some symptoms of having colon polyps include: Change in bowel habits. Sudden onset of constipation or diarrhea can indicate the presence of a larger polyp. However, this symptom is shared with many other gastrointestinal diseases. Rectal bleeding or blood in the stool. This is most often a sign of hemorrhoids, however, it can also be a sign of colon cancer. Blood in the stool can present as a black, tarry stool. Pain. You may have abdominal pain if you have a bowel obstruction related to a large polyp. Iron-deficiency anemia. Polyp bleeding can occur without it being noticeable on toilet paper or in the stool. When the body loses blood over a long period of time, it lowers your hemoglobin, which causes iron-deficiency anemia. […] You should consult your gastroenterologist immediately if you have severe abdominal pain, blood in the stool, or changes in bowel habits that persist (a week or more).

• #7 Bowel polyps

  https://www.nhs.uk/conditions/bowel-polyps/

  Bowel polyps do not usually cause any symptoms, so most people with polyps will not know they have them. […] Rarely, larger polyps can cause symptoms such as: a small amount of slime (mucus) or blood in your poo, bleeding from your bottom, a change in your normal bowel habits, such as diarrhoea or constipation, losing weight without trying. […] Non-urgent advice: See a GP if: you have slime (mucus) or blood in your poo for 3 weeks or more, your bowel habit is different to normal, you are constipated and it’s not improving with treatment, or it happens regularly and lasts a long time, you’ve lost a noticeable amount of weight without trying. […] Urgent advice: Ask for an urgent GP appointment or get help from NHS 111 if: you’ve had diarrhoea for more than 7 days, your poo is black or dark red, you have bloody diarrhoea. […] Immediate action required: Go to AE or call 999 if: you’re bleeding non-stop from your bottom, there’s a lot of blood for example, the toilet water turns red or you see large blood clots.

• #8 Bowel polyps | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/stomach-liver-and-gastrointestinal-tract/bowel-polyps/

  Most people with polyps wont be aware of them as they produce no symptoms and are often discovered by accident. […] However, some larger polyps can cause: a small amount of rectal bleeding (blood in your stool), mucus to be produced when you open your bowels, diarrhoea or constipation, abdominal pain. […] Some people will need further colonoscopies because polyps can recur. Polyps can sometimes run in families. This is uncommon, but means youll need colonoscopy checks at regular intervals.

• #9 Colon polyps – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/colon-polyps/symptoms-causes/syc-20352875

  Pain. A large colon polyp or cancer can block part of the bowel, leading to cramping and belly pain. […] Rectal bleeding. This can be a sign of colon polyps or cancer or other conditions, such as hemorrhoids or minor tears of the anus. […] Some colon polyps may become cancerous. The earlier polyps are removed, the less likely it is that they will become cancerous.

• #10 Colon polyps: Causes, symptoms, and treatment

  https://www.medicalnewstoday.com/articles/322428

  People with colon polyps often have no signs or symptoms of the condition. […] When colon polyps do cause symptoms, people may notice the following: […] Bleeding from the rectum. This is the most common symptom of polyps, although it can also be a sign of other conditions, such as hemorrhoids or minor tears in the anus. […] Abdominal pain. Large polyps that partially block the bowel can cause abdominal cramps and pain. […] A change in the color of stools. Minor polyp bleeding can cause red stripes in the stool, and heavier bleeding can make the stool appear black. However, other factors can also change the color of the stool, such as foods, medicines, and supplements. […] Iron deficiency anemia. If a persons polyps bleed slowly over time, they may develop an iron deficiency. Anemia can cause weakness, pale skin, shortness of breath, light-headedness or fainting.

• #11 Colonic Polyps: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/172674-overview

  Most patients with colonic polyps are asymptomatic. In symptomatic patients, the most common presenting symptom is rectal bleeding; chronic bleeding from colonic polyps may cause iron deficiency anemia. Other symptoms of polyps include diarrhea or constipation, often with decreased stool caliber. […] Patients with isolated colonic polyps are usually asymptomatic but can experience overt or occult colonic bleeding. Colonic polyps can occur as part of inherited polyposis syndromes in which their number is greater and the risk for malignant progression is much higher compared to the risk associated with isolated colonic polyps. […] Colonic polyps are curable if removed. If not treated, the patient may develop complications, such as bleeding, and the condition may even be fatal if malignant transformation occurs.

• #12 Symptoms & Causes of Colon Polyps – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/colon-polyps/symptoms-causes

  Most people with colon polyps dont have symptoms. You cant tell that you have polyps because you feel well. When colon polyps do cause symptoms, you may […] have bleeding from your rectum. You might notice blood on your underwear or on toilet paper after youve had a bowel movement. […] have blood in your stool. Blood can make stool look black or can show up as red streaks in your stool. […] feel tired because you have anemia and not enough iron in your body. Bleeding from colon polyps can lead to anemia and a lack of iron. […] Many other health problems can also cause these symptoms. However, if you have bleeding from your rectum or blood in your stool, contact your doctor right away.

• #13 Colon Polyps – Types, Symptoms, Prevention and Treatment | Apollo Hospitals

  https://www.apollohospitals.com/diseases-and-conditions/what-are-colon-polyps-what-are-the-symptoms-of-colon-polyps/

  In most cases, colon polyps does not cause any symptoms. The doctor generally diagnoses this condition while examining the colon for some other condition or during routine colonoscopy. Some people, however, may have the following symptoms of colon polyps: […] You may experience pain due to colon polyp. It is because the polyp may partially or completely block the colon resulting in abdominal cramping. […] You may also have a change in the color of your stool. You may see a red stool because of the presence of blood. The color of stools may also be black if the polyp is present in the proximal part and is bleeding. […] You may also experience a change in your normal bowel habits. The large polyps may secrete fluid in the alimentary tract leading to diarrhea. If the polyp is large enough to either partially or completely obstruct the colon, you may experience constipation.

• #14 Colon polyps: 10 things to know | MD Anderson Cancer Center

  https://www.mdanderson.org/cancerwise/colon-polyps–10-things-to-know.h00-159538167.html

  The vast majority of people with polyps have no symptoms at all. But polyps can sometimes cause bleeding, which ranges from microscopic levels that only show up as iron-deficiency anemia, to black tarry stools, to bright red blood. In rare cases, they might also cause some minor rectal discomfort or large amounts of mucus to be passed. […] Polyps themselves are not cancer. Some just have the potential to develop into it. We remove them so they never have that chance.

• #15 8 symptoms of colon polyps – WYZA

  https://www.wyza.com.au/articles/health/8-symptoms-of-colon-polyps

  Anaemia brought on by polyps often causes fatigue, exhaustion, and a feeling of overall weakness. If you experience this symptom along with others on this list particularly rectal bleeding call your doc right away. […] Feeling always out of breath or like you cant catch your breath during normal activities is another side effect of the anaemia due to blood loss.

• #16 Colon polyps: Causes, symptoms, and treatment

  https://www.medicalnewstoday.com/articles/322428

  A change in bowel habits that lasts longer than a week, including constipation or diarrhea. […] Most colon polyps are harmless, but some can develop into cancer. If they do, it can take many years for them to turn cancerous. […] Polyp removal is the best way to treat colon polyps and prevent cancer from developing.

• #17 Colon Polyps: Symptoms, Types, Cancer Risks, Pictures

  https://www.emedicinehealth.com/colon_polyps/article_em.htm

  Colon polyps in most people do not cause pain. […] When signs and symptoms of colon polyps are present, they include: Rectal bleeding, Anemia, Diarrhea, Constipation. […] Most people with colon polyps do not have signs or symptoms; however, in people who do, the most common are: Rectal bleeding, Anemia, Diarrhea or constipation, Decreased stool size (caliber). […] Other signs and symptoms may include: Iron deficiency, Black stools, Abdominal pain, Nausea and/or vomiting, Intussusception (the colon folds into itself or telescopes). […] Yes, adenomas or adenomatous polyps have the potential to mutate into colon cancer (or sometimes termed colorectal cancer).

• #18 8 symptoms of colon polyps – WYZA

  https://www.wyza.com.au/articles/health/8-symptoms-of-colon-polyps

  Polyps, particularly those that have gotten large, can cause bleeding. Over time this blood loss can lead to anaemia, or a low red blood cell count. You may feel tired, or your doctor may notice it in a routine blood test. […] Any new changes in bowel movements that last longer than a week are cause for concern, says Dr May. These can include diarrhoea or constipation or a change in the consistency and shape of the stool. Pencil shaped stool long, narrow poop is a sign of colorectal cancer, especially if it happens suddenly, she says. […] Losing weight without trying is one of the hallmark signs that colon polyps have progressed into later-stage colorectal cancer. As they grow larger, they can block nutrient absorption in the colon, causing unexplained weight loss. […] On its own, this symptom can have many causes but if you feel consistent cramping or pain in your abdomen along with other symptoms on this list, it may indicate colon polyps. This can range from mild discomfort to severe pain.

• #19 How Long Do Colon Cancer Symptoms Take to Appear?

  https://curasia.com/how-long-do-colon-cancer-symptoms-take-to-appear-insights-into-progression/

  In some individuals, symptoms may not appear until the cancer has reached an advanced stage, which is why routine screening remains critical. For others, signs such as changes in bowel habits, blood in stools, or abdominal discomfort may manifest earlier. However, these symptoms are often subtle and easy to overlook. […] The timeline for colon cancer symptoms to appear varies from person to person, influenced by factors such as the individuals overall health, lifestyle, and the location of the tumor. On average, it can take several years for polyps to develop into cancer and for symptoms to present themselves. For some, colon cancer symptoms may take up to 10 years to appear, while others may notice signs earlier, depending on the progression of the disease. […] In the early stages of colon cancer, symptoms are often mild or non-existent. Many people may not experience noticeable changes in their digestive health. However, certain subtle signs could indicate the presence of an underlying issue. These early symptoms may include: Unexplained changes in bowel habits (constipation or diarrhea), Blood in stools (which may appear as bright red or dark, tar-like stools), Persistent abdominal discomfort, cramps, or bloating, Feeling that your bowel doesnt empty completely.

• #19 How Long Do Colon Cancer Symptoms Take to Appear?

  https://curasia.com/how-long-do-colon-cancer-symptoms-take-to-appear-insights-into-progression/

  Colon cancer is one of the most common types of cancer worldwide, and early detection is critical for improving treatment outcomes. However, one of the key challenges in diagnosing colon cancer is that its symptoms often take time to appear. This delayed onset can lead to the disease progressing unnoticed for months or even years. […] The first stage of colon cancer typically begins with the formation of benign polyps in the lining of the colon or rectum. These polyps usually dont cause any symptoms, which is why colon cancer can go unnoticed for a long time. […] While polyps themselves may take 10-15 years to grow into malignant tumors, they can be detected through routine screenings such as colonoscopies. […] If the polyps go undetected or untreated, they can undergo further genetic changes, eventually transforming into cancerous cells. During this stage, cancer begins to invade deeper layers of the colon wall. At this point, colon cancer symptoms might start to become noticeable, but this can vary depending on the location of the tumor and its growth rate.

• #20 Colon Polyps: Symptoms and Warning Signs | Colon & Rectal Surgical Specialists

  https://www.crssny.com/colon-polyps-symptoms-and-warning-signs/

  Colon polyps could be a warning sign of cancer, which is why we always inform patients of the potential warning signs. […] The most common signs and symptoms of colon polyps include the following: […] Bleeding from the Rectum A number of conditions that affect the colon and the rectum tend to result in rectal bleeding. […] Changes in Bowel Movements Sometimes colon polyps can lead to constipation or diarrhea that persists for longer than a week, as well as general changes in bowel habits. […] Changes in Stool Color Blood can wind up in your stool, often causing your stool to appear black or much darker in color. […] Anemia and Iron Deficiency Colon polyps that bleed can lead to iron deficiency, resulting in fatigue and shortness of breath. […] Cramping, Nausea, and Vomiting Large polyps in the colon can lead to bowel obstructions, causing cramps, pain, nausea, and vomiting.

• #21 Signs You Could Have Colon Polyps

  https://www.houstontxgi.com/blog/801554-signs-you-could-have-colon-polyps/

  Rectal bleeding can be rather unnerving. Find out if colon polyps could be to blame. If you have colon polyps you may not even know it. Sometimes the only way people find out that they have this issue is when our Houston, TX, gastroenterologist, Dr. Krishnamurthy Shivshanker, performs a bowel examination. However, some people with colon polyps may, in fact, experience symptoms. These symptoms include: […] Rectal bleeding (this can also be a sign of a minor tear or hemorrhoids) […] Stool color changes (stool that contains blood may look black) […] Diarrhea or constipation that lasts more than one week […] Nausea, abdominal pain and vomiting (if the colon polyp obstructs the bowels) […] Some colon polyp may be cancerous or become cancerous, which is why it’s so important that they are caught early and removed. The earlier they are detected and treated the less likely that they will be cancerous.

• #22 Colon Polyps: 7 Symptoms You Need to Know to Prevent Cancer

  https://www.dagens.com/health-0/colon-polyps-7-symptoms-you-need-to-know-to-prevent-cancer/

  Appearance of diarrhea or constipation Any new changes in bowel movements that last more than a week are concerning says Dr. May. These may include diarrhea or constipation or a change in the consistency and shape of the stool. Pencil-thin stools long and narrow are a sign of colon cancer especially if it occurs suddenly she says. […] Unexplained weight loss Weight loss without trying is one of the hallmark signs that colon polyps have progressed to a later stage of colon cancer. As they grow they can obstruct the absorption of nutrients in the colon causing unexplained weight loss. […] Abdominal pain or discomfort By itself this symptom can have many causes but if you feel continuous cramps or pain in your abdomen along with other symptoms on this list it may indicate colon polyps. This can range from mild discomfort to severe pain.

• #23 Polyps in the bowel – Guts UK

  https://gutscharity.org.uk/advice-and-information/conditions/polyps-in-the-bowel/

  Polyps are often discovered at colonoscopy as part of an investigation into bowel changes or symptoms. Usually, the polyps are not the cause of those symptoms. Occasionally they can cause bleeding from the back passage. Or may produce an excess of mucus or slime, which can be noticed on motions when opening the bowel. Very occasionally a polyp can grow so large as to cause a blockage of the bowel but, unless this occurs, polyps do not cause pain. […] Polyps rarely cause day to day problems. However, the main concern is that they may become harmful and cause cancer in the future. Most polyps can be taken off at the time of your colonoscopy, however in some cases, such as for very large polyps, another procedure may be required. If polyps are found and removed, they are looked at under a microscope. If cancer changes are found within the polyp, then further tests, such as scans, will be needed at that time.

• #23 Polyps in the bowel – Guts UK

  https://gutscharity.org.uk/advice-and-information/conditions/polyps-in-the-bowel/

  If the polyps do not contain cancer, you will be told either that nothing else is needed or that you should have another colonoscopy in a few years to keep an eye on things. This depends on the number of polyps found and whether they were low or high risk types. The British Society of Gastroenterology (BSG) have developed some guidance on who needs surveillance, and the guidance is available from the BSG website. If you need a printed copy, please contact Guts UK.

• #24 How Long Do Colon Cancer Symptoms Take to Appear?

  https://curasia.com/how-long-do-colon-cancer-symptoms-take-to-appear-insights-into-progression/

  As colon cancer progresses, symptoms tend to become more pronounced and harder to ignore. At this stage, the cancer may have spread beyond the colon, potentially affecting other parts of the body. Advanced colon cancer symptoms may include: Unexplained weight loss, Fatigue and weakness, Anemia due to chronic blood loss, Persistent nausea or vomiting, Narrowing of stool or the feeling of incomplete bowel movements. […] Colon cancer is a slow-developing disease, with symptoms that may take years to appear. However, this delayed onset makes it all the more important to stay proactive about regular screenings and to monitor any changes in your digestive health.

• #25 Polyps of the Colon and Rectum – Digestive Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/digestive-disorders/tumors-of-the-digestive-system/polyps-of-the-colon-and-rectum

  Bleeding from the rectum is the most common symptom. […] Most polyps do not cause symptoms. When they do, the most common symptom is bleeding from the rectum. A large polyp may cause cramps, abdominal pain, obstruction, or intussusception (one segment of the intestine slides into another, much like the parts of a telescope). Large polyps with tiny fingerlike projections that can be seen only with a microscope (called villous adenomas) may excrete water and salts, causing excessive watery diarrhea that may result in low levels of potassium in the blood (hypokalemia). […] Occasionally, a rectal polyp on a long stalk drops down and dangles through the anus. […] Doctors generally recommend removing all polyps from the large intestine and rectum because of their potential to become cancerous.

• #26 Colon polyps | American Hospital of Paris

  https://www.american-hospital.org/en/pathologie/colon-polyps

  Most polyps are asymptomatic. The most frequent symptoms are blood in the stool and anemia. Larger polyps can cause cramps, abdominal pain or obstruction of the intestinal lumen. […] In rare cases, large adenomas can lead to watery diarrhea and, consequently, lower levels of potassium in the blood.

• #27 Colon polyps Guide: Causes, Symptoms and Treatment Options

  https://www.drugs.com/health-guide/colon-polyps.html

  Many times, people are not aware they have colon polyps because there are no symptoms. […] Larger growths can bleed, causing blood in the stool. Sometimes bleeding polyps can cause fatigue and other symptoms of anemia (low levels of red blood cells). On rare occasions, a large polyp can cause diarrhea or secretion of large amounts of potassium. This can cause marked fatigue and muscle weakness. […] If a polyp is not removed, it will continue to grow larger. It usually takes several years for a polyp to change to a cancer. However, some polyps have malignant cells even though they are small. About one-third of adenomatous polyps will progress to cancer in three to five years if undetected or ignored.

• #28 Polyps: Symptoms, Diagnosis, Potential Complications and Research | Nationwide Children’s Hospital

  https://www.nationwidechildrens.org/conditions/polyps

  Typically children with polyps will pass blood when they have a normal soft bowel movement that is not associated with pain or discomfort. […] With small amounts of bleeding over time, some children can develop iron-deficiency anemia and therefore have other symptoms including weakness, fatigue, pallor, or headache. […] At times, polyps can be seen by a parent after a bowel movement when they pass out of the anus still attached by a stalk to the colon wall and then go back into the rectum. […] Colon polyps rarely lose significant amounts of blood unless they are pulled off the colon wall at their stalk by the normal movement of the colon. […] Larger polyps in the small intestine or colon can become a lead point allowing the bowel to telescope over itself creating a blockage called an intussusception.

• #29 Colon Polyps: Causes, Symptoms, Diagnosis, Treatment

  https://www.webmd.com/colorectal-cancer/colon-polyps-basics

  Most colon polyps dont cause symptoms. You probably wont know you have one unless a test finds it. If you do have signs, they can include: […] Talk to your doctor if you notice any of these signs. They dont always mean that you have colon polyps or colon cancer. Other things like hemorrhoids, tears in the tissue inside your bottom, or some medicines can cause these symptoms. […] Colon polyps don’t usually hurt. But you could have cramps in your belly area if an especially large polyp blocks part of your bowel. […] If it’s not removed, an average-size polyp has about an 8% chance of becoming cancerous within 10 years. Over 20 years, the chance increases to 24%.

• #30 Colonic Polyps: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/172674-overview

  Fortunately, colonic polyps grow slowly; cancer development is estimated to usually occur about 10 years after the formation of a small colonic polyp. […] Untreated, colonic polyps may progress to carcinoma over several years. Morbidity from colonic polyps is related to complications, such as bleeding, diarrhea, intestinal obstruction, and progression to cancer. […] A study by Stryker et al suggests that the risk of cancer development from sporadic 1-cm colonic polyps is 8% at 10 years and 24% at 20 years. […] The risk of cancer development depends on the size of the polyp, villous histology, and its association with polyposis syndromes. In familial adenomatous polyposis (FAP), cancer inevitably develops 10-20 years after the initial appearance of colonic polyps.

• #31 Colon Polyps | ACG

  https://gi.org/topics/colon-polyps/

  Colon polyps are important because of their known relationship to colon cancer, which is the third leading cancer in the US, and the second leading cause of cancer related death. It is well established that most colon cancers arise from colon polyps. […] Most polyps do not produce any symptoms, which is why screening is so important. Rarely, a polyp may cause visible blood to appear in your stool. Sometimes blood will only be detected with special testing your doctor may perform on a stool sample (hemoccult testing). Rarely, polyps may cause a change in bowel habits; if the polyp or cancer is very large it may lead to constipation, or perhaps diarrhea, though this is highly unusual. […] Current theories propose it will take about 10 years for a small adenoma to transform into a cancer. That is why the standard interval for screening colonoscopy is 10 years. However, the time interval may be shorter for patients with a hereditary form of colon cancer (like familial adenomatous polyposis or hereditary non polyposis colorectal cancer) or inflammatory bowel disease. The recommended intervals are general guidelines and may not apply to every patient.

• #32 Colon Polyps Causes, Symptoms, and Treatments | UPMC

  https://www.upmc.com/services/colon-rectal-surgery/conditions/colon-polyps

  Colon Polyps Symptoms and Diagnosis […] It’s crucial to be aware of any signs of colon polyps. […] There doesn’t tend to be any symptoms of colon polyps. As a rule, you can’t tell if you have a colon polyp without a screening test. […] But if a polyp is very large, it may cause: Stomach pain. Blood in your stool. Changes in bowel habits (such as having to go more often). Constipation. Diarrhea. Excess mucus in your stool. […] How likely are colon polyps to turn into cancer? […] Most colon polyps don’t turn into cancer. […] Bigger polyps are more likely to become cancerous than small ones.

• #33 3 Things to Know About Colon Polyps > News > Yale Medicine

  https://www.yalemedicine.org/news/3-thing-to-know-about-colon-polyps

  Colorectal cancer is the second deadliest cancer in the United States. Many cases start with a small growth called a polyp in the lining of the intestine. Most polyps are harmless, but some may undergo changes over time and develop into cancer. […] Not all colorectal polyps are precancerous, but many have that potential. An estimated 5% to 10% of adenomas may eventually progress to become a cancer. […] When a person is found to have multiple or large polyps (which are made of larger masses of cells), there is more opportunity for cancer to develop, Dr. Pantel adds. A large polyp has been around longer, so it has had more time to undergo those cellular changes. […] Polyps dont usually cause symptoms, so anyone can have potentially cancerous polyps and not know it. Thats why its important to talk to a medical professional if you notice any of the following symptoms of colon cancer: a change in bowel habits; blood in your stool; diarrhea, constipation, or feeling that the bowel does not empty all the way; abdominal pain, aches, or cramps that dont go away; or unexplained weight loss.

• #34 Should You Be Concerned About Colon Polyps?

  https://www.cancercenter.com/community/blog/2023/01/when-to-worry-about-colon-polyps

  Polyps inside the colon or large intestine are most often asymptomatic but, may occasionally cause rectal bleeding, fatigue (due to anemia) and chronic constipation or diarrhea that lasts longer than a week. […] Keeping an eye out for these signs, and reporting them to your doctor, may help catch colorectal cancer early, when its easier to treat. […] Not all polyps pose a higher risk for colorectal cancer. But some colon cancers may start as polyps. So, the more polyps you have, the higher your cancer risk. […] Size matters when it comes to colon polyps and cancer risk. A polyp bigger than 10 millimeters3/8ths of an inchis considered more concerning than anything smaller. […] Not all polyps become cancers, but certain types are more likely to turn cancerous. […] Some colon polyps may grow back. Nearly one in three people whove had polyps removed develop new ones. Thats why its important to have follow-up screening within five years.

• #35 Colon polyps blood in stool – Pre-Diagnosis, Signs & Symptoms – Cancer Chat | Cancer Research UK

  https://cancerchat.cancerresearchuk.org/f/pre-diagnosis-signs-symptoms/106501/colon-polyps-blood-in-stool

  Hello, I’m new here. I am a 30 year old female. I have had some blood in my stool and dull abdominal pain and fatigue. […] Polyps can bleed. If not removed they can sometimes become cancerous in the future. […] Some bleed, but this doesn’t mean they’re cancerous. Some polyps just have a real good blood supply. Polyps can be adenomas which have the potential to become cancerous, but most do not. Polyps can also be „hyperplastic” which are completely harmless and won’t ever become cancerous.

• #36 Colon Polyps: Symptoms, Causes, Types (Tubular Adenoma, Sessile)

  https://www.cancercenter.com/cancer-types/colorectal-cancer/risk-factors/colon-polyps

  Colon polyps often develop silently, which means they usually dont cause symptoms. In some cases, the patient may notice signs such as: […] Blood in stool […] Constipation or diarrhea that persists longer than a week […] Feeling tired due to anemia and lack of iron, which can happen if there is bleeding from the colon […] Rectal bleeding, which could show up on toilet paper or in underwear. […] Colon polyps can grow back. Research indicates that as many as 60 percent of polyps may grow back within three years. Also, about 30 percent of patients who’ve had polyps removed develop new ones. This is why it is important to talk to the care team about follow-up screening within five years after the polyps are removed.

• #37 The facts about colorectal polyps | Roswell Park Comprehensive Cancer Center – Buffalo, NY

  https://www.roswellpark.org/cancertalk/202109/facts-about-colorectal-polyps

  Most people with colon polyps do not have symptoms. Often a doctor finds them during a regular checkup or while testing for something else. […] Some people do have symptoms, such as: Bleeding from the anus (you might notice blood on your underwear or on toilet paper after you’ve had a bowel movement.) Change in bowel habits (constipation or diarrhea that lasts more than a week) Blood in the stool (may look like red streaks or make the stool black) Mucus drainage from the anus If you have any of these symptoms, see your doctor. […] If a polyp is removed completely, it is unusual for it to return in the same place. The same factors that caused it to grow in the first place, however, could cause polyp growth at another location in the colon or rectum. New polyps will develop in at least 30 percent of people who have previously had polyps.

• #38 Colon Polyps: Symptoms and Warning Signs | Colon & Rectal Surgical Specialists

  https://www.crssny.com/colon-polyps-symptoms-and-warning-signs/

  Be sure to see a doctor if you notice blood in your stool, abdominal pain, or changes in your bowel habits that last longer than one week. […] Since polyps may be linked to an increased risk of colon cancer, its important for regular exams and screenings to occur as part of your follow-up care after polyp removal.

• #39 Bowel polyps | nidirect

  https://www.nidirect.gov.uk/conditions/bowel-polyps

  Bowel polyps don’t usually cause any symptoms, so most people with polyps won’t know they have them. […] However, some larger polyps can cause: a small amount of slime (mucus) or blood in your poo (rectal bleeding), diarrhoea or constipation, pain in your tummy (abdominal pain). […] Some people with a certain type of polyp may be at risk of it coming back in the future (recurring). This is uncommon but means you’ll need examining (by colonoscopy) at regular intervals of around three to five years. This is to catch any further polyps that may develop and potentially turn into bowel cancer.

• #40 What are polyps, and do they lead to colorectal cancer? | Colorectal Cancer Alliance

  https://colorectalcancer.org/article/what-are-polyps-and-do-they-lead-colorectal-cancer

  The development of polyps in the colon or rectum has the potential to prevent the digestive system from doing its job. Depending on the size and location of the polyp, it can obstruct the normal flow of stool, causing anemia, constipation, diarrhea, bleeding, or abdominal pain. […] If a polyp is cancerous, it can become a tumor and invade the surrounding tissue, leading to metastatic colorectal cancer. […] Most people do not have any signs or symptoms of polyps. Therefore, everyone must receive their recommended screenings on time. […] The key to preventing CRC is to detect and remove polyps early, before they have a chance to become cancerous. […] If left untreated, polyps can continue to grow and develop into cancerous tumors, which can spread to other parts of the body.

• #41

• #42

  https://acripc.com/blog/colon-polyps-causes-symptoms–treatment.htm

  Often, iron deficiency anemia can be combined with other symptoms of colon polyps, so be watchful of any bowel issues occurring along with fatigue. […] We recommend that you see a doctor if you experience any abdominal discomfort, blood in your stool, or a change in your bowel habits for over a week. By seeing a doctor soon rather than later, a doctor can check for colon polyps before they worsen.

• #43 Signs and symptoms of bowel cancer | Bowel Cancer UK

  https://www.bowelcanceruk.org.uk/about-bowel-cancer/symptoms/

  Bowel cancer can affect anyone, whatever your age, gender, ethnicity or where you live. […] Symptoms can include: bleeding from your bottom, blood in your poo, a change in your pooing habits. You might be going more or less often, or have diarrhoea or constipation that might come and go, losing weight but you’re not sure why, feeling very tired all the time but you’re not sure why, a pain or lump in your tummy. […] Having these symptoms doesn’t always mean you have bowel cancer, but it’s still important to find out what’s causing them. […] There are several things that can cause bleeding from your bottom or blood in your poo. Bright red blood may come from swollen blood vessels (haemorrhoids or piles) in your back passage, or non-cancerous growths (polyps). It may also be caused by bowel cancer.

• #44 Colon Polyp Symptoms that Requires a Doctor Visit

  https://csakc.com/posts/5-colon-polyp-symptoms-that-should-send-you-straight-to-the-doctor/

  When a large polyp bleeds internally over time, you may not see any blood but it will present as an iron deficiency or anemia. Regular blood tests can identify this problem along with symptoms like shortness of breath or being overly tired. […] This symptom is a serious one. Of course there may be other reasons like hemorrhoids or a tear in the anus, but it may also be from a very large polyp or even possibly from cancer. […] If you experience unintentional weight loss in conjunction with some of the other symptoms mentioned above, this should be of concern. Certain inflammatory polyps can lead to Crohn’s Disease, ulcerative colitis, and irritable bowel disease (IBS) which all increase the risk of cancer. […] The American Cancer Society tells us that more young adults are being diagnosed with colon cancer. For that reason, the recommendation has changed to begin colorectal screenings from age 50 to age 45. Regular screenings can catch small polyps before they large and likely cancerous.

• #45 Colon Polyps: Causes, Symptoms, Diagnosis, and Treatments

  https://resources.healthgrades.com/right-care/digestive-health/colon-polyps

  Colon polyps are more likely to develop in adults, with researchers estimating that only 6% of children without lower gastrointestinal bleeding are affected. Colon polyps become more common with age. […] Most people with colon polyps do not experience symptoms. However, when symptoms do occur, they can include rectal bleeding or bloody stool. […] Early diagnosis and treatment are essential to lowering your risk of colon cancer. While most people should start their colorectal cancer screenings at age 45, your doctor may recommend starting earlier if you have certain risk factors.

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