Obesity in the extreme. It has risks, but surgery is the most effective treatment for people with severe obesity.
D003250:Constriction; D015390:Gastric Bypass / Q000379:methods*; D015391:Gastroplasty; D006801:Humans; D009767:Obesity, Morbid / Q000188:drug therapy / Q000209:etiology / Q000601:surgery*