The abdominal pain after colonoscopy is not that the mucosa is damaged. If there is no tissue biopsy or intestinal related treatment during colonoscopy, the mucosa is generally not damaged, and the abdominal pain may be caused by gas injection during colonoscopy operation. Because of the colonoscopy, the examiner needs to operate the colonoscope to inject water and gas into the intestinal lumen, and the intestinal lumen needs to be propped up in order to observe the mucosal situation, because the injection of water or gas may lead to abdominal pain after colonoscopy, and it will generally be restored after a period of time through the exhaust. If colonoscopy, the examiner found lesions, need to biopsy the lesions, so this time will certainly damage the mucosa, but with the examination of abdominal pain is generally not related to, and the damage to the mucosa after a period of time will be restored, and will not cause any impact. If the abdominal pain after the examination has not been relieved or there are other gastrointestinal symptoms, it is recommended to consult a doctor in time to avoid delaying the condition.