Abnormal illness behaviour Medically unexplained symptoms Functional symptoms

Prefer Does not assume psychogenesis A disturbance in bodily functioning

Classification : Medical snydromes : fibromialgia chronic fatigue chronic pain irritable bowel syn Psychiatric disorders : anxiety depression somatoform dis

Epidemiology : Functional symptoms are common about 1/5 of the population at 12 m follow-up up to half will remain disabled Outcome is poorest for patients with more intractable problems who are referred to special care Functional sym : may occur alone commonly accompany serious physical illness

Aetiology : Physical Psychological Behavioural Social

Aetiology : Minor physiological /patological bodily sensation person’s understanding,knowledge,experience of illness,personality Social circumstance,reactions of family,heath care professionals

Conversion DIS : Unexplaind sensory & unclear sym Symptom suggests physical illness in absence of relevant physical pathology Produced through unconscious psychological mechanisms

Conversion are distinguished from organic DIS : Distribution does not conform to the known innervation of the part Their varying intensity Their responsiveness to suggestion