Gastric resection surgery is called metabolic surgery or metabolic weight loss surgery. There are risks associated with any type of surgery that has obesity-related conditions that require metabolic surgery. The risks associated with metabolic surgery are as follows: 1. Risk of bleeding and leakage: This risk is the most common risk of gastrointestinal surgery, and appendectomy or cholecystectomy is similar to its probability of related complications, so overall, its risk is small; 2. Long-term risk: Patients may suffer from malnutrition or hair loss in the long term, but these aspects can be addressed by reminding patients after surgery to take a daily high vitamins or a high protein diet to solve. In summary, the risks of weight loss metabolic surgery are small, and long-term complications can be avoided through postoperative adjustments.