Alopecia areata is rare dermatology condition effecting the scalp,resulting in hair loss.
Alopecia areata is condition affecting the scalp characterised by well circumscribed round or oval patchy hair loss without structural changes in the skin.
- Exact cause of Alopecia areata is not known. it is thought to be autoimmune disorder where in the antibodies are produced towards ones own body.
- Genetic predisposition is common.
- Physical and mental stress is thought to be precipitating cause.
- General ill health.
Alopecia areata is thought to have some association with thyroid disorders.
- Alopecia areata is fast growing condition having a rapid onset,affecting the scalp first then involves whole body(very rarely).
How the lesions of Alopecia areata look:
Alopecia areata starts as patch which can be of any shape and size(oval or round) with hair loss.
- Scalp shiny slightly thin and depressed,with no signs of inflammation,scarring or atropy.
- Alopecia areata spreads peripherally(active patch).
- The stationary area the hair are firmly attached,can extend(stationary patch)
- In active patch the hair are loose at periphery sin spreading
- In stationary patch hair are firmly attached.
- Condition may become diffuse involving whole of scalp (Alopecia totalis).
- In severe cases hair loss in whole of the hairy araes(Alopecia universalis).
- How to identify that the condition is recovering or not? exclamation mark of hair suggests recovery and is seen in patch where hairs are growing back.
- Course is unpredictable and slow.
- Recurrence is common
- Good prognostic indicators are small patches and young adults.
- Reassurance and general improvement of general health.