Under normal circumstances, a colonoscopy will not cause constipation after a colonoscopy. Constipation after colonoscopy may occur because the patient has emptied the intestine before the colonoscopy and the intestine is clean and free of residue, which may result in no stool for several days. In addition, constipation after colonoscopy is usually not related to the colonoscopy operation itself, but may be caused by other reasons, such as low water intake, unreasonable diet structure, low intake of fruits and vegetables. Prolonged late nights, high work pressure, and low activity levels can cause constipation, as can gastrointestinal dysfunction. If the patient has constipation after colonoscopy, without other uncomfortable symptoms, such as nausea, vomiting, abdominal distension, abdominal pain, etc., there is no need to worry at this time, it is recommended to drink more water, eat light, easy to digest food, such as porridge, soup noodles, small ravioli, maintain appropriate exercise, etc.. And appropriate clockwise circular massage of the abdomen, but also appropriate activities through walking to promote intestinal peristalsis, eat more fresh fruits and vegetables and other coarse fiber food, generally a few days after the constipation can be relieved. If constipation symptoms continue or even worsen or abdominal pain and other symptoms, it should be considered that the constipation may be caused by gastrointestinal diseases, should promptly go to the hospital to clarify the cause, and give treatment measures.