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Morbid (Severe) Obesity
Morbid or severe obesity means a very high level of body fat (usually BMI 40 or more, or 35+ with weight-related illness) that seriously threatens health and often needs specialist treatment.
Causes & risk factors
- Long-term energy intake far exceeding energy used
- Strong genetic and hormonal influences
- Very low activity levels
- Some medicines and medical conditions
- Emotional eating, stress and poor sleep
Common symptoms
- Breathlessness even at rest or on mild effort
- Severe joint and back pain
- Sleep apnoea and heavy snoring
- Constant tiredness
- Leg swelling
- Difficulty with everyday movement
Tests & diagnosis
- Blood sugar and HbA1c
- Lipid profile
- LFT
- Thyroid test
- Sleep study and heart assessment
Treatment & management
- A structured medical weight-loss programme with a specialist team
- Dietitian-led eating plan and supervised activity
- Weight-loss medicines where appropriate
- Treat related conditions — diabetes, sleep apnoea, high BP
- Bariatric surgery (sleeve or bypass) is often the most effective option
When to see a doctor urgently
- A very high BMI with weight-related illness
- Breathlessness at rest or suspected sleep apnoea
- Diabetes or high blood pressure that is hard to control
- Interest in an assessment for bariatric surgery
Frequently asked questions
When is weight-loss surgery considered?
Usually for a BMI of 40 or more, or 35+ with a serious weight-related condition such as type 2 diabetes, when supervised diet, activity and medicine have not achieved enough weight loss.
How much weight can surgery help me lose?
Results vary, but many people lose a large share of their excess weight over 1-2 years, with big improvements in diabetes, blood pressure and sleep apnoea, alongside lasting lifestyle change.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.