The Roux-en-Y gastric bypass is a bariatric procedure wherein smaller pouch is created from a small portion near the top of the stomach. With this smaller pouch stapled up, patients will feel full faster and eat less.

A fixed length of the small intestine is then separated and sewed onto this stomach pouch, resulting in food bypassing most of the stomach as it enters the small pouch and directly going into your small intestine. This causes your body to absorb fewer calories to assist weight loss.

Roux-en-Y gastric bypass is a malabsorptive and restrictive procedure, meaning the procedure limits food absorption (malabsorptive) while also limiting food intake (restrictive). It is highly successful in terms of weight loss and is one of the most commonly performed weight loss surgery overseas. RYGB also improves health conditions such as high blood pressure or diabetes.