The process of general anesthesia for colonoscopy and gastroscopy is the process of probing the body with an endoscope inside the patient’s body after anesthesia. 1. Enteroscopy: take a laxative before enteroscopy, when the intestinal cleanliness of the intestinal tract to meet the standards for enteroscopy, after the patient removed pants lying down to keep the legs flexed. Then the anesthesiologist will give general anesthesia to the patient, and then the doctor will insert the enteroscope from the anus into the lens, follow the lumen into the lens, rotate the endoscope into the ileocecal part of the patient, and then slowly back out of the lens to observe the whole intestinal lumen. 2. Gastroscopy: Before gastroscopy, patients need to fast for 6-8 hours before the examination, and try not to drink water on the day of the examination. Before the examination, patients lie on the left side of the bed, and anesthesiologists give short-acting general anesthesia to the patients, and then the doctors insert the gastroscope into the mirror from the mouth, and then it reaches the esophagus, stomach, and duodenum through the pharynx, and observes the situation in the patient’s duodenum, stomach, and esophagus, and other parts of the patient’s body.