Colorectal polyps are asymptomatic and can be detected early to avoid cancer.

Dr. Wu Jianxian from the Department of Hepatobiliary Gastroenterology, Taipei Hospital, Ministry of Health and Welfare, said that colorectal polyps generally do not have symptoms, but if not treated, they may accumulate and grow in size over time, and even cause symptoms or cancer.

Colorectal polyps refer to protruding tissue produced by cell proliferation in the mucosa of the large intestine. Polyps may develop throughout the gastrointestinal tract, and the most common sites are the large intestine, especially the sigmoid colon and rectum; Most colorectal polyps are less than 1 centimeter and are usually benign tissue without symptoms. However, when a few polyps are discovered, they are already large and may even cause malignant changes, which can lead to colorectal cancer. Dr. Wu Jianxian from the Department of Hepatobiliary and Gastroenterology at Taipei Hospital of the Ministry of Health and Welfare said that colorectal polyps generally do not cause symptoms, but if not treated, they may accumulate and grow in size over time, and even cause symptoms or cancer.

Family history is related to diet. Most fruits and vegetables are consumed

The occurrence of colorectal polyposis is closely related to dietary habits and family history. Generally speaking, eating red meat is associated with low cholesterol. Fiber foods, especially high-calorie foods, and few fruits and vegetables will increase the risk of colorectal polyps if accumulated over a long period of time. The current situation in Taiwan is that more than 50% of people over the age of 50 have colorectal polyps.

Dr. Wu Jianxian said that most colorectal polyps have no symptoms. Symptoms may occur unless the polyps are larger than 1 cm or appear cancerous. Bleeding is the most common symptom, and sometimes the amount of bleeding is very small and It is intermittent, and patients often do not notice it, or they think it is just hemorrhoid bleeding and ignore further examination. Sometimes it is discovered only by "fecal occult blood test". Generally speaking, the larger the polyps, the greater the chance of bleeding. Occasionally, other symptoms such as changes in bowel habits such as constipation, diarrhea or abdominal pain may occur. In rare cases, colorectal polyps can cause intestinal obstruction and require emergency surgery.

Pay attention to adenomas*** polyps which may be a sign of cancer. Dr. Wu Jianxian explained that colorectal polyps mainly include hyperplasia*** flesh, inflammation*** flesh and adenoma*** Meat. Hyperplasia *** flesh is usually smaller than 0.5 cm and will not become malignant tumors. It is most commonly found in the sigmoid colon or rectum; inflammation *** flesh is mainly caused by inflammation of the large intestine and does not become cancerous in itself. Adenoma*** polyps have a chance of transforming into colorectal cancer. The carcinogenesis of polyps is related to polyp size, tissue classification and cell abnormalities. Generally, the chance of adenoma*** tumors becoming cancerous is 5-10%. The larger the polyps, the larger the polyps. Or the more severe the cell abnormality, the greater the possibility of causing cancer. Polyps larger than one centimeter have a 10% chance of becoming cancerous. However, for patients with familial polyposis coli, the possibility of polyps becoming cancerous in the future is as high as 100%.

Early detection and early treatment can reduce the incidence of colorectal cancer

The diagnosis of colorectal polyps can rely on colonoscopy and barium photography. Barium photography involves injecting a barium solution into the large intestine from the ***, and then using X-rays to develop the area with polyps or abnormalities. Small polyps are difficult to detect. Colonoscopy uses an endoscope directly through the vaginal opening to examine the entire large intestine. If polyps are found, biopsy or polypectomy can be performed at the same time. Currently, it is recommended that all adenomas and flesh be removed, unless it is a huge large intestine. Only polyps must undergo surgical removal. Generally, colorectal polyp removal can be completed during colonoscopy without hospitalization. However, you must rest more after the operation and avoid exertion and drinking. Common complications of colorectal polypectomy are bleeding, and more serious complications include colorectal perforation and peritonitis. The chance of occurrence is low unless a large polyp is removed or the patient has a specific constitution. If polyps can be removed when they are not yet cancerous or when they are very early cancerous, the incidence of colorectal cancer may be reduced.

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