Gastric sleeve surgery, also known as sleeve gastrectomy, is a type of weight-loss surgery that is used to treat severe obesity and related medical conditions. During the surgery, a large portion of the stomach is removed, leaving behind a narrow "sleeve" that is about the size and shape of a banana. This reduces the size of the stomach and restricts the amount of food that can be consumed, leading to weight loss. The surgery is typically done laparoscopically, which involves making small incisions in the upper abdomen and using small instruments to perform the surgery.

Gastric sleeve surgery is usually recommended for people who have tried other weight loss methods without long-term success and have a body mass index (BMI) of 40 or higher (extreme obesity) or a BMI between 35 and 40 and a health condition such as sleep apnea, high blood pressure, heart disease, or type 2 diabetes. The surgery is only offered to qualified people who have serious medical conditions related to their obesity or are at high risk for developing them.

Some of the benefits of gastric sleeve surgery include:

• Improved quality of life
• Reduction or elimination of obesity-related diseases such as type 2 diabetes, sleep apnea, high blood pressure, high cholesterol, stroke, cancer, and infertility
• Simpler, quicker, and safer compared to other bariatric surgery operations[[2]](https://www.hopkinsmedicine.org/health/treatment-tests-and-therapie...