A colonoscopy is not always needed for intestinal flatulence with lots of farts. However, a colonoscopy is needed for intestinal flatulence and farts caused by suspected diseases. If eating too many sweet potatoes, carrots, beans and other foods lead to intestinal flatulence and farts, usually do not need to do a colonoscopy. If accompanied by abdominal pain, changes in stool character and frequency, etc., colonoscopy is needed to clarify the cause of the disease and exclude acute and chronic enteritis, acute and chronic gastritis, intestinal obstruction, colon cancer and other diseases. Before the colonoscopy need to pay attention to diet control, avoid crude fiber food vegetables and so on. You should need to eat some easy-to-digest fluids or semi-fluids, and you should fast in the early morning of the day of the examination, and you should stop using anticoagulants before the colonoscopy. After the colonoscopy, some patients may experience abdominal distension, vomiting, nausea and other symptoms. At this time, attention should be paid to avoid physical exercise and appropriate bed rest. Patients with intestinal bloating and farting should go to the hospital in time for relevant examination, and the doctor will give the correct treatment according to the examination.