The diagnosis of obesity is defined by a body mass index over 30 kilograms per metre squared.
To diagnose obesity a detailed and full general examination is mandatory in the initial assessment of all patients.
Baseline characteristics are essential for future comparison, and will also influence the patient's metabolic risk profile. Examination may also support or refute a possible diagnosis of Cushing's syndrome.
Seeking evidence of underlying disease, for example right heart failure, functional status for exercise and suitability for surgery.
Patients with severe osteoarthritis may find exercise very difficult and benefit from orthopaedic or physiotherapy input.
Seek any signs of hypothyroidism which will exacerbate obesity.