Sleeve stomach refers to the shape of the stomach after sleeve gastrectomy, a surgical procedure that uses laparoscopy to cut the greater curvature of the stomach vertically, accounting for more than 90% of weight-loss surgeries. The stomach is cut like a sleeve, also known as the tube stomach and banana stomach. Sleeve stomach surgery is mainly used for weight loss and diabetes treatment. The surgery is performed by making several small holes in the belly, and then using laparoscopy to cut off all of the greater omentum of the greater curvature of the stomach, and then cutting the stomach with a laparoscopic linear cutting occluder. The pouch-like stomach is cut like a sleeve, which means that a pouch-like stomach is cut into a straight stomach, also known as a banana stomach or tube stomach. After the surgery, the volume of the stomach is reduced accordingly, hence the common name of gastric reduction surgery. Patients who want to undergo sleeve gastrectomy are advised to go to a regular hospital, consult with a professional doctor, and cooperate with the doctor to complete the relevant examinations and then undergo the surgery, do not go to an irregular medical institution to do the surgery, in order to avoid adverse consequences.