A Body Mass Index (BMI) greater than 40 is by definition morbid obesity. Lesser BMI may be morbid if associated by serious co-morbidities.

You may be a good candidate for surgery if:

1. You are 100 pounds or more over your healthy (ideal) body weight
2. You have a BMI of 40 or more
3. You have a BMI of 35 or more and have serious health problems, such as diabetes or heart disease, that are caused by your excess weight