Gastroenteroscopy is divided into electronic colonoscopy and gastroscopy. It is an examination that is carried out under the guidance of a doctor and with the cooperation of the patient, using a slender hose that goes deep into the patient’s body. 1. Electronic enteroscopy refers to the use of a slender fiber hose of about 140 cm in length and 1 cm in diameter, which is inserted through the anus to examine the inside of the intestines from multiple angles and directions and collect photographs for the doctor’s diagnosis. During the examination, the patient needs to cooperate with the doctor to keep the left side lying position, stay relaxed, and inform the doctor in time when symptoms of abdominal distension and other discomforts occur. 2. Gastroscopy refers to the use of a thin, flexible tube with a camera at the front end, which is inserted through the throat and deep into the stomach to examine the stomach and other organs. During the examination, the patient needs to cooperate with the doctor to keep the left side lying position or other positions, do not move freely, and cooperate with the doctor to swallow and other movements. If you need to carry out electronic colonoscopy or gastroscopy, you need to carry out the examination under the operation of the doctor, and cooperate with the examination during the process to avoid adverse consequences.