How to diagnose alopecia areata?
The diagnosis of alopecia areata is usually easier when the disease is manifested by recurrent bald patches that heal and recurrences after a few months or years. Similarly, forms of alopecia total or universal usually pose no diagnostic problem to the dermatologist familiar with this condition. Careful examination with a magnifying device (or dermatoscope videomicroscope) allows the dermatologist to identify the exclamation point hair and hair cadavérisés during acute episodes of alopecia areata. Careful observation of the scalp can also view short hair whose end is broken and weathered hair (twisted) to the root of the scalp. It also highlights points of yellow evocative through magnifying glass (dermatoscope). If your dermatologist suspected diffuse alopecia areata, the achievement of Trichogramma or even a biopsy can be useful, it is sometimes necessary to determine the ability of regrowth. The dermatologist may request blood tests to look for associated autoimmune diseases.
