After doing the colonoscopy stomach pain, there are generally the following two situations: first, gas residue: if it is said to be a slight pain, it may be because in the process of colonoscopy, the colonoscope needs to be inflated or water injection, so as to facilitate the propping up of the intestinal wall and facilitate the observation of the intestinal mucosa whether there are polyps, inflammation, etc., so that there may be residual gas when the colonoscopy is done, and cause abdominal distension in patients, or even spasm of the intestine, thus cause stomach pain. In this case, you can promote exhaustion through abdominal massage and appropriate exercise to help relieve stomach pain, and does not require special medication. Second, intestinal perforation: If the pain is severe and never relieved, and there is a plate abdomen or peritoneal irritation signs, in this case may be the case of intestinal perforation, it is recommended to improve the abdominal standing abdominal plain film, to exclude whether there is intestinal perforation.