After colonoscopy, you can eat some liquid food, such as millet porridge, rotten noodles, etc. You can also eat some fresh vegetables and fruits, such as cauliflower and banana. If there is a biopsy, endoscopic treatment, according to the bleeding situation, the size of trauma to decide the fasting time and the type of diet. If it is ordinary colonoscopy, usually you can eat normally 6 hours after the colonoscopy. If the patient is undergoing microscopic treatment at the time of examination, he/she can usually have a normal diet after 24-48 hours. 1. Fluid food: colonoscopy will cause some stimulation to the intestinal tract, at this time you should avoid eating spicy and stimulating food, otherwise it will aggravate intestinal discomfort, you can eat some easy-to-digest fluids and soft food, such as millet porridge, rotten noodles and so on. 2. Fresh vegetables and fruits: fresh vegetables and fruits are rich in fiber, vitamins and other substances, which will not irritate the intestinal tract after consumption and can supplement the nutrients needed by the patient’s body, but they should not be eaten immediately after colonoscopy, and can be eaten about 6 hours after the colonoscopy. If the patient’s gastroenteroscopy result suggests a problem, he should go to the hospital in time, and give standardized treatment after clarifying the cause.