A major health problem, obesity poses as a risk factor for many diseases. For morbidly obese patients, bariatric surgery provides gradual, sustained and significant weight loss. As a result, there is a marked improvement in obesity-related comorbidities. Obesity is a chronic, multifactorial disease that is caused due to various reasons such as social, behavioural, genetic, and psychological components. Energy output is much lesser compared to energy input into the body.

It is the harbinger of cardiovascular diseases, respiratory dysfunctions such as asthma, obesity-hypoventilation syndrome, obstructive sleep apnoea, etc. Musculoskeletal, urologic and gastrointestinal diseases are aggravated due to obesity. Surgery for obesity is recommended when every other resort to reduce like exercise, dieting, drug treatments and psychotherapy, has failed.