Having a weight more than normal range is called obesity. Medically having high amount of fat in the body is defined as obesity. Its not only a cosmetic problem. Obesity affects your health too. It can cause diabetes, high blood pressure and heart disease.


Causes of Obesity

Obesity can be caused due to a variety of reasons. Few of them are listed here:


Most of the time obesity tends to be genetic and runs in families.

  • Pregnancy

    The average weight gain in pregnancy is about 12 kilograms. So pregnancy is a state of increased fat in your body.

  • Physical Inactivity

    Lazy people sitting all the time without working, end up being obese. Because they can’t burn their body fat without physical activity.

  • Drugs

    Medications like anti-diabetics, anti-seizures, etc., can cause obesity as a side effect.

  • Fatty foods

    Poor diet should always be taken into account. Eating fat-rich and fibre-less foods make you gain weight.

  • Surgeries

    Surgeries can lead to obesity. Because fat will be deposited around the area of incision (surgical cut) for giving protection and help with healing.

  • Medical Conditions

    Some medical problems can also cause obesity as a symptom. One such disorder is Cushing’s syndrome where a hormone problem leads to weight gain.

Symptoms and Complications of obesity

Obesity can lead to:

  • High cholesterol
  • Heart attack
  • Diabetes (high blood sugar level).
  • Joint pain (osteoarthritis).
  • Gallstones.
  • Infertility in females.
  • Fatty liver.
  • Gout.
  • Gastro Esophageal Reflux Disease (GERD)
  • Depression

Diagnosing Obesity

Physical Examination

The diagnosis of obesity is usually based on a physical examination and a patient history. Increased waist circumference may be noted which is also a risk for getting other health problems including heart diseases.


BMI means Body Mass Index. BMI is calculated as follows:

BMI = Body weight (kg) ÷ Height (m²)

BMI of 18.5 to 24.9 is considered as Normal weight.

BMI of 25.0 to 29.9 is considered as Overweight.

BMI more than or equal to 30 is considered as obesity.

Treatments for Obesity

Medical Treatments

Medical therapy aims to reduce the appetite, increase your body metabolism and make your body absorb the nutrients from food. Few drugs which can do them are listed below. Drugs which reduce appetite are anti-depressants, mood stabilizers and amphetamine-based drugs.

A drug which blocks fat breakdown and prevents fat absorption is orlistat.

Surgical Treatments

Sleeve gastrectomy is a most commonly performed surgery for losing weight. Its a simplest procedure to perform. Its least expensive.


  • Regular physical activity is the key for weight loss. It can be in any form. Can be a yoga, gameplay, swimming or anything that is suitable sport for you.
  • Food is the next best option. Eating fat-free and fibre-rich food is helpful preventing obesity. Honey can cause weight loss when mixed with a glass of lukewarm water and taken once a day.


Dr. J. S. Rajkumar


M.S., F.I.C.S., Dip. N.B. (SURG.), F.R.C.S. (ENG.), F.R.C.S. (EDIN.), F.R.C.S. (GLASGOW), F.R.C.S. (IRELAND), F.I.M.S., F.A.I.S., F.R.M.S. (LONDON), F.A.E. (GASTRO), F.A.C.G. (USA), F.I.C.A. (USA), F.I.A.G.E.S., Dip M.I.S. (FR.)

Dr. Anirudh Rajkumar

Bariatric and Laparoscopic Surgeon