For simple obesity, firstly, laparoscopic gastric band surgery is considered, which is simple and effective, does not change the gastrointestinal tract, can adjust the weight loss speed, has no obvious side effects, and can achieve satisfactory results in most cases; If the body mass index exceeds 40 and you are prone to hypertension, diabetes, hyperlipidemia or the above diseases, you can consider laparoscopic gastric bypass surgery.