Indications for Surgery

The international guidelines for surgery are based on BMI criteria as follows:

BMI < 30 – surgery is not indicated, medically supervised weight loss if necessary.

BMI 30 – 35 – surgery indicated if there is ONE weight related health issue present OR there are no weight related health issues but medically supervised diets have not been successful.

BMI >35 – surgery indicated without any weight related health issues needing to be present.

Weight related health conditions can be found on the “Health Risks” page.

What is BMI

Body Mass Index (BMI) is an assessment generally used by health experts to determine if a person is underweight, within a healthy weight range, overweight or obese. It does not account for body composition.

Calculate your BMI


BMI Ranges: What they mean

  • 18.5- Underweight
  • 18.5 – 25- Normal
  • 25 – 30- Overweight
  • Above 30- Obese
  • Above 35- Severely obese
  • Above 40- Morbidly obese
  • Above 50- Super Obese

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