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Obesity Surgery in Sydney

Serving patients in Bass Hill, St Mary’s, Penrith, Caringbah & Harrington Park


For individuals suffering from morbid obesity or long-term issues associated with excess weight, bariatric (weight loss) surgery can be an effective treatment.

Being informed can help you make a decision about your health and assist you in taking the first steps in your weight loss journey.

What is Obesity?

Obesity occurs when an individual’s body weight is in excess of the healthy range for their height leading to a high percentage of body fat.

What are the causes of Obesity?

Weight gain and long term obesity can be caused by a number of factors:

  • Genetics.
  • Lack of exercise.
  • Overeating.
  • Poor diet.

Obesity Symptoms

Clinical obesity and weight gain can have a negative impact on your physical and mental health. Some symptoms or side effects of obesity include:

  • Low back pain or Backaches.
  • Feeling tired all the time.
  • Heavy sweating.
  • Joint pain (especially weight bearing knee and hip joints).
  • Low confidence or self-esteem.
  • Shortness of breath.
  • Snoring or Sleep Apnoea.

Obesity Diagnosis

The Body Mass Index (BMI) is the most commonly used method for determining a patient’s weight category. The BMI is calculated by measuring the height and weight of the patient.

  • Blood tests.
  • Physical exam.
  • Review of family history.
  • Waist measurement.

A GP may ask additional questions about your lifestyle and any potential underlying health issues.

Body Mass Index

Body Mass Index (BMI) is measure of body fat based on height and weight that applies to both adult men and women. BMI does not differentiate between body fat and muscle mass. Therefore, body builders and people who have a lot of muscle bulk will have a high BMI but are not overweight or obese.

BMI Classifications:

Classification BMI
Underweight <19
Ideal BMI 19-25
Overweight 25-30
Obese >30
Severely Obese >35
Morbidly Obese >40
Super Obese >50

BMI Calculator

BMI Calculator
BMI Calculator
Weight (Kg) :
Height (cm) :
The BMI is :

Fat predominantly distributed around the waist is also a risk factor for health complications such as cardiovascular disease and type II diabetes. Fat predominantly deposited around the hips and buttocks doesn't have this same risk.

What is Morbid Obesity?

If an individual has a BMI of over 30 they are considered to be obese. Other obesity measures are when a patient's weight is 20kg or more above his or her health weight.

A patient is considered to be morbidly obese when either of the above conditions are met and at least one other obesity-related health conditions (co-morbidity) is existing.

  • Arthritis
  • Sleep Apnea
  • High Blood Pressure
  • High Cholesterol
  • Type 2 Diabetes
  • Venous Stasis Disease (Collection of Blood in the Lower Limbs)
  • Soft Tissue Infections

Morbidly obese patients may qualify for weight loss surgery.

Why should I treat my Obesity?

If left untreated, obesity can lead to a number of serious health issues including:

  • Arthritis.
  • Certain cancers.
  • Coronary heart disease.
  • High blood pressure.
  • Psychological conditions.
  • Respiratory disorders.
  • Sleep apnea.
  • Stroke.
  • Type two diabetes

Obesity Treatments

Weight Loss Surgery Treatments / service-summary

There are a number of options available for those who want to treat their obesity:

  • Diet.
  • Exercise.
  • Therapy.
  • Medication.

For individuals suffering from morbid obesity or long term issues associated with excess weight, bariatric (weight loss) surgery can be an effective treatment.

  • Australian Health Practitioner Regulation Agency: AHPRA
  • Australian Medical Association: AMA
  • Royal Australasian College of Surgeons: RACS
  • General Medical Council (UK)
  • Ramsay Health Care - St George Private Hospital
  • St George Hospital, Sydney, Australia
  • Australia & New Zealand Gastro Oesophageal Surgery Association: ANZGOSA
  • St Luke's Care - St Luke's Private Hospital
  • Center of Excellence
  • Surgeon of Excellence
  • Inselspital
  • University of Beme
  • Kauno Medicinos Universitetas - Kaunas University of Medicine
  • The Royal College of Surgeons of Edinburgh
  • Obesity Surgery Society of Australia & New Zealand: OSSANZ