How long it takes to have a bowel movement after rectal adenoma surgery will depend on the type of rectal adenoma surgery. Generally 2~7 days. Rectal adenoma refers to a benign lesion originating from the rectal mucosa, which is precancerous and needs to be removed by surgery. The general surgery can be divided into colonoscopic adenoma removal and laparoscopic bowel resection. If the rectal adenoma is small, it can be treated by colonoscopic adenomectomy, and usually, the bowel reflex can be restored in about 2 days, so that defecation can be carried out; if the rectal adenoma is large or malignant lesion is suspected, it can be carried out by laparoscopic resection of the intestinal tubes, and due to the large damage of the incision, it usually takes about 7 days for the bowel reflex to be restored, so that defecation can be facilitated. After rectal adenoma surgery, anti-infection treatment is usually needed to promote the recovery of the condition, and the nature and frequency of stools should be closely observed, and if symptoms of constipation or blood in stools occur, timely consultation should be made to find out the cause of the disease.