Please tell me: Is there any harm in diabetic gastric bypass surgery? Does it lower sugar? The causes of diabetes: 1. K cells distributed in the stomach and intestines are stimulated by food to secrete insulin resistance factor, which causes insulin resistance in the body. 2. Islet cells are damaged and apoptotic under the action of insulin resistance factor. The unique feature of gastric bypass surgery is that it changes the physiological flow of food and is accomplished through steps such as gastric block, gastrointestinal anastomosis, and enteroenteric anastomosis. After the surgery, insulin resistance in the patient’s body is eliminated, and the way food flows through the body after the surgery also promotes insulin secretion in the patient’s body, reduces apoptosis and proliferates islet cells, restores islet function, and cures diabetes. In addition to the normalization of blood sugar, the patient recovered well from a series of accompanying complications. For example, retinopathy, diabetic nephropathy, diabetic dermatitis, diabetic sexual dysfunction, hypertension, hyperlipidemia, etc. were gradually cured. The occurrence of serious complications has been eliminated, and the occurrence of disabling and fatal situations has been avoided. What are the dangers of diabetic gastric bypass surgery? Disadvantage one: changes in the gastrointestinal digestive tract, the large open gastric sac can no longer be examined by gastroscopy, but only by CT and other examinations or by laparoscopic exploration. For patients with a family history of gastric cancer or recurrent gastric ulcers, careful consideration is needed. Disadvantage two: the operation is relatively complicated and requires high technical level of doctors and high laparoscopic skills, so not all doctors are suitable for this operation. Disadvantage three: vitamins and minerals need to be supplemented during the postoperative recovery period, and patients are advised to take multivitamins regularly, especially iron, calcium, etc.