A weight loss surgery is recommended only if medical management of excess weight
possible or the patient is not
responding to it. Also, just weight
a parameter—person’s height, waist, body surface area, BMI etc are all considered.
First the doctor will assess him, take detailed medical history, rule out causes of weight gain with appropriate tests (diabetes, hypothyroidism, adrenal gland problem, anemia, liver and kidney problems), assess his diet, physical activity level etc.