After a colonoscopy, it is usually possible to return to normal in 1 to 15 days, depending on the individual’s physical condition and the specific situation at the time of the examination. If there is no problem found in the intestines during the colonoscopy, and it is just a routine examination, the function of the gastrointestinal tract can return to normal within 1 to 3 days in this case. If inflammation or ulcerative lesions are found during the examination, and a biopsy is taken at the same time, light and easy-to-digest food should be consumed after the colonoscopy, and the function of the intestinal tract will return to normal in about 1 week. If intestinal polyps or malignant tumors are found during the examination, after surgical resection, fasting and nutritional support are required, and in severe cases, it may take about 15 days for the intestinal function to recover basically. After the colonoscopy, if the patient has diarrhea, abdominal distension and other uncomfortable symptoms, should promptly inform the doctor, and follow the doctor’s instructions for treatment.