Colonic adenoma would be sigmoid colon adenoma, which is not a cancer but a benign proliferative disease that occurs in the sigmoid colon and can develop into colon cancer, so it needs to be removed as soon as possible once it is detected. Sigmoid colon adenoma is a disease caused by intestinal endothelial hyperplasia, which can be divided into sigmoid colon tubular adenoma, sigmoid colon villous tubular adenoma and sigmoid colon villous adenoma. Patients with this disease may experience symptoms such as abdominal pain, change in stool shape, change in bowel habits such as constipation, diarrhea alternately, and if the adenoma breaks down, the patient may also experience the symptom of blood in the stool. For treatment, since adenoma of the sigmoid colon is a precancerous lesion, it is mainly treated by surgical resection, and it can be treated by choosing colonoscopic resection or laparoscopic resection. If you are diagnosed with adenoma of the sigmoid colon, please follow your doctor’s instructions for treatment and regular follow-up.