Colorectal polyps are the most common part of colorectal polyps, which are elevated lesions on the surface of colorectal mucosa, and more than half of the adenomas over 2cm will become cancerous if they continue to develop. Colon cancer and intestinal polyps have a close relationship, because most of the colon polyps grow in the rectum and sigmoid colon, and the sigmoid colon, rectum is also the site of colorectal cancer. From a pathological point of view, colorectal polyps can be divided into two categories: inflammatory polyps and adenomatous polyps. Inflammatory polyps (non-tumor polyps) are not easy to become cancerous, while adenomatous polyps will become cancerous; polyps without heterotrophic hyperplasia are almost non-cancerous, while polyps with heterotrophic hyperplasia have a higher cancer rate; polyps with a wide base, multiple polyps, polyps larger than 2 cm, and polyps with a course of more than two years have a high malignant transformation rate. The significance of treatment: cutting off the road of cancer The appearance of polyps is the earliest event that can be monitored as the beginning of intestinal cancer, and the occurrence of intestinal cancer has to go through the process of adenomatous polyps (tubular adenomas, choriocapillaromas) → tumors → carcinomas → progression of cancer. 95% of colorectal cancers are transformed from colorectal polyps step by step, from the initial normal mucosa to polyps to cancer through a series of gene mutation events, this process generally takes 5-10 years. Although from polyps to cancer to go through several years, but the middle-aged and elderly is the high incidence of polyps in the age group, if you do not check who do not know whether their intestines have polyps, the age (over 50 years old) should be at least a colonoscopy. If the intestines are clean and free of polyps, congratulations, your colon is very healthy, and you can be rechecked after 5-10 years. If there is a small polyp in the intestine, and the pathology shows tubular adenoma after endoscopic resection, congratulations, you are very lucky to have blocked the possibility of cancerous polyp in time, and review in the next 3-5 years. Cancerous polyps, including pre-cancerous ones, can be removed endoscopically to achieve radical cure. If the polyp progresses to cancer, and if there is lymph node metastasis, radical treatment will be more difficult, and even if surgical clearance is performed, it is not 100% guaranteed that the lymph nodes will be completely cleared. This is also related to the principle of tumor treatment emphasizing early detection and early treatment, and polypectomy belongs to the treatment of precancerous diseases. Small polyps can be resected during colonoscopy, which is a safe and easy way to remove polyps under the direct vision of colonoscopy, such as coil removal, electrocoagulation resection and submucosal resection. However, large polyps (more than 2cm) or polyps suspected to be cancerous (wide base) will be referred to surgery for open surgery. Timely endoscopic uprooting of smaller polyps also stops the polyp from going on to become cancerous. The removed polyp will be sent to the pathology department to further determine the nature of the polyp. With the above treatment, patients with GI polyps can not only eliminate the potential for malignant changes, but also relieve their mental concerns, so they should adopt a positive attitude towards examination and treatment. How should it be detected when there are no obvious symptoms The large intestine is a favorable site for polyps, but more than half of the patients with colorectal polyps have no symptoms. Only a small percentage of patients with intestinal polyps clinically present with abnormalities such as blood in the stool, mucus in the stool, and abdominal pain. Because of their general lack of clinical symptoms, colon polyps are easily overlooked. Individual patients with larger polyps may have symptoms such as bleeding and intestinal irritation, however, these symptoms also often lack specificity. Routine physical examinations such as blood tests, ultrasound, CT, abdominal plain film and other examinations are more difficult to detect colorectal polyps, and the vast majority of colorectal polyps are clinically detected during colonoscopy or lower gastrointestinal imaging. Polyps and intestinal cancer have a close relationship: family members have colon cancer or colon polyps, long-term high-fat or fried food, high animal protein, low fiber diet, age greater than 50 years old, is polyps, intestinal cancer incidence of the population. It is recommended to have a fecal occult blood test every year from the age of 50, and then have a colonoscopy if there is a positive result. If there is no positive finding in colonoscopy, it is sufficient to do colonoscopy once in 5-10 years, so that colorectal adenomas with cancerous tendency can be detected as early as possible in a cost-effective way.