You can eat a moderate amount of durian three days after having a colonoscopy, but in moderation. Normal diet can usually be resumed in about 2 hours after having a colonoscopy. A colonoscopy is usually done to see if there are any lesions in the patient’s intestines, as well as other intestinal diseases. After doing colonoscopy, if there is no abnormality, normal diet can be resumed 2h after the painless colonoscopy on the same day. If patients undergoing invasive operations, such as colonoscopy biopsy, polyp removal, etc., the dietary transition needs to be a little slower, with fewer and more frequent meals, to avoid the emergence of abdominal pain, abdominal distension, gastrointestinal bleeding and other adverse symptoms. If symptoms such as abdominal pain, bloating and blood in the stool occur 3 days after colonoscopy, it is recommended to go to the hospital in time to avoid delay.