Complex disease involving excessive body fat. Review possible symptoms, contributing factors, assessment, warning signs and care options.
About Obesity
Complex disease involving excessive body fat
Obesity is a complex disease involving an excessive amount of body fat that increases risk of other diseases.
It is not just a cosmetic concern but a medical problem that increases risk of other diseases.
Editorial update (28 September 2026): structured medical content awaits clinical reviewer sign-off.
How assessment may be approached
A clinician may review diet, weight change, appetite, bowel symptoms, medicines, supplements and possible deficiencies. Selected blood tests and a dietetic assessment may be appropriate.
Care may include dietary changes, treatment of a deficiency or underlying cause, supplement guidance, feeding support or specialist referral. Ask for measurable goals and review intervals.
When to seek prompt care
Seek urgent care for severe dehydration, inability to swallow, persistent vomiting, significant unintentional weight loss with concerning symptoms, fainting, confusion or severe weakness.
Symptoms
- Excess body fat
- Breathlessness
- Increased sweating
- Joint pain
- Fatigue
Possible causes
- Caloric imbalance
- Inactivity
- Genetics
- Medical conditions
- Medications
Care and treatment options
- Dietary changes
- Increased physical activity
- Behavior changes
- Medications
- Bariatric surgery
Key points
- Affects 13% of world population
- Major risk factor for many diseases
- Preventable and reversible
- Requires lifestyle changes
Preparing for a consultation
- Recent weight change and a short food record.
- Supplements, medicines and restrictive diets.
- Bowel, swallowing, appetite or fatigue symptoms.
- Pregnancy, illness or other factors affecting nutrition.
Questions worth asking
- Is Obesity the most likely explanation for these symptoms, and what alternatives should be checked?
- Which symptoms or findings would require urgent review?
- Are medicines, underlying health problems or lifestyle factors contributing?
- What tests or examinations are needed now, and what can safely wait?
- What treatment or self-care options are reasonable, and when should I be reviewed again?
- What is the expected benefit, limit, cost and follow-up plan for the suggested care?
Related conditions
Related clinicians
Medical information limitations
This page summarizes listed condition information and cannot confirm a diagnosis or choose treatment. Do not start, stop or change prescribed treatment based only on this page.
Common questions
What is Obesity?
Complex disease involving excessive body fat This is general information; the name describes a possible diagnosis or clinical problem, not a personal diagnosis.
How might a clinician assess Obesity?
A clinician may review diet, weight change, appetite, bowel symptoms, medicines, supplements and possible deficiencies. Selected blood tests and a dietetic assessment may be appropriate.
What care may be discussed?
Care options listed include Dietary changes, Increased physical activity, Behavior changes, Medications. Which option is appropriate depends on the confirmed cause, severity, preferences and contraindications.
When should Obesity be checked urgently?
Seek urgent care for severe dehydration, inability to swallow, persistent vomiting, significant unintentional weight loss with concerning symptoms, fainting, confusion or severe weakness.
How should I prepare for a consultation?
Recent weight change and a short food record. Supplements, medicines and restrictive diets. Bowel, swallowing, appetite or fatigue symptoms. Pregnancy, illness or other factors affecting nutrition. Bring previous reports and a current medicine list where relevant.
Can this page diagnose or treat the condition?
No. A page about Obesity can help you understand possible features and questions, but it cannot confirm a diagnosis or choose treatment. A qualified clinician should assess your symptoms, history and any test results.
General information only; it is not a diagnosis or a substitute for a qualified clinician’s advice.