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Although not too many have heard about it- the fact is that Alopecia areata is a very common and specific autoimmune disease, in which the immune system, normally designed to protect the body from foreign invaders, now attacks its own tissue.
Hair follicles are those tiny cup-shaped structures from which our hairs grow. Of course- the result is- hair loss on the scalp and elsewhere. Unlike other types of Alopecia, in this case- hair falls out in small, round patches about the size of a quarter. It is also a fact that the clinical picture can also vary in different people because, some experience really extensive hair loss.
Good thing is that disease rarely causes some serious health problems, although it can progress to total loss of hair on the head - alopecia areata totalis or complete loss of hair on the head, face, and body – condition called alopecia areata universalis.
Alopecia areata is sometimes called spot baldness.
- Alopecia areata monolocularis
It is important to point out that this type is characterized by baldness in only one spot which may occur anywhere on the head.
- Alopecia areata multilocularis
Unlike the previous type- this type refers to multiple areas of hair loss which can sometimes cover up the whole body!
- Alopecia areata totalis
This is the uncommon type but it is important to know that, if the patient loses all the hair on scalp, the disease is then called Alopecia areata totalis.
- Alopecia areata universalis
This is the most expressed type of this disease and it is characterized by all body hair loss, including pubic hair.
- Alopecia areata barbae
The fact is that the disease may also be limited only to the beard and in this case- it is called Alopecia areata barbae.
- Diffuse alopecia areata
Almost everyone have heard about some case where patient's hair to appear to have turned white overnight. This is called diffuse alopecia areata and, in most cases, it happens due to the psychological trauma.
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