Gastric bypass
During gastric bypass surgery a large part of the stomach and a part of the small intestine are bypassed (nothing is removed). Surgical staples are used to create a small pouch (ca 15-20 ml) at the top of the stomach. The pouch is then connected to the rest of the small intestine. After the operation you feel less hungry and when you eat you will feel fuller sooner. The new stomach is very small and you have to eat small meals regularly through the day.