Painless gastroenteroscopy together at the same time, the examination will be assessed before the physical condition, under the guidance of the doctor to maintain an empty stomach, take laxatives, generally safer, do not worry too much. Painless gastroscopy and painless colonoscopy are two tests, gastroscopy is entered from the mouth, and colonoscopy needs to be entered from the anus, both need to be injected with anesthesia to reduce the patient’s pain, and they can be done at the same time, or can be operated separately. Painless Gastroscopy and Painless Enteroscopy will be strictly evaluated for physical condition before doing the examination. For diabetic patients, as well as patients in poor physical condition, as the examination requires fasting state, if the examination time is longer, hypoglycemia may occur, tell the doctor in advance to avoid dizziness and other uncomfortable symptoms. Listen to the doctor’s arrangement before doing the examination, usually fasting before gastroscopy, keep fasting state. Take laxatives before colonoscopy to promote bowel movements and clean out the intestinal tract. In the state of little gastrointestinal contents, it is conducive to a clearer observation of lesions in the mucosa of the gastrointestinal tract. To do painless gastroenteroscopy should follow the doctor’s instructions, under the guidance of the doctor to carry out the examination is safer.