Bariatric surgery (gastric bypass surgery) is performed to treat severe obesity. A bariatric surgeon is a physician who performs surgery on the stomach and/or intestines of obese patients to reduce the size of the stomach, and therefore allow less food to be ingested, resulting in weight loss. Bariatric or gastric bypass surgery, also known as roux-en-Y gastric bypass, is performed to create a small pouch that bypasses part of the intestine.

Obesity is damaging to one’s health: some of the negative effects of obesity are heart disease, diabetes, some forms of cancer, hypertension, asthma, obstructive sleep apnea, arthritis; and obesity more »