Alopecia Areata is the erratic hair loss disorder that affects around 2% population of this world. Researchers are constantly working on the possible alopecia areata causes, diagnosis and treatment.
What is Alopecia Areata?
Alopecia areata causes hair loss from areas of the body, usually the scalp. It causes bald spots on the head especially in the first stage. And thus, it has nickname “spot baldness”. In 1-2% of cases the condition is found to be spreading to the entire scalp or epidermis (the outermost layer of the skin.)
Alopecia areata affects only the growing hairs. Resting follicles escape the destruction. Therefore, truncating the growth phase of hairs avoids the complete destruction of hair follicles. Often the alopecia areata causes the hair follicles to enter into a telogen resting state to avoid the worst effects of the disease. And this triggers significant shedding.
The hair follicles usually stay in this resting state for prolonged periods of time. If the hair follicles try to return an anagen growth state, the immune system retargets the hair follicles and forces them back into a resting state.
Treatment of alopecia areata is partly based on this knowledge. The objective is to reduce the action of the immune cells on the hair follicles and also to promote the resting hair follicles back into new growth activity.
Types of Alopecia Areata
Alopecia Areata Monolocularis
Alopecia Areata Multilocularis
Alopecia Areata Totalis
Alopecia Areata Universalis
Diffuse Alopecia Areata
Alopecia areata treatment and diagnosis indicates that the disease contains autoimmunity, i.e. Failure to recognize its own constituent parts. It erroneously treats its hair follicles as foreign tissue. And results into suppression and stopping of hair growth.