Gastric bypass surgery is a type of bariatric surgery that involves creating a small stomach pouch and rerouting a portion of the small intestine to this new pouch. This limits the amount of food a person can eat and reduces the number of calories absorbed by the body.

This surgery is typically performed on people who are severely overweight or obese and have not been able to lose weight through diet and exercise alone. It can also help improve or resolve conditions such as type 2 diabetes, high blood pressure, and sleep apnea.

There are several types of gastric bypass surgery, including Roux-en-Y gastric bypass and mini gastric bypass. The procedure is typically performed under general anesthesia and can be done using open surgery or laparoscopic techniques, which involve making small incisions in the abdomen.

Like any surgery, gastric bypass carries risks and potential complications, including bleeding, infection, blood clots, and digestive problems. It is important to carefully consider the potential benefits and risks of the surgery and to discuss these with a qualified healthcare professional.