What is Alopecia Areata?
Alopecia is a general term for hair loss. Alopecia areata is a particular common cause of hair loss, which can occur at any age. This usually results in a small, coin-sized, round patches of baldness on the scalp, although the hair in other places, such as the beard, eyebrows, eyelashes, body and limbs may be affected. From time to time, it may also be the entire scalp (alopecia Totalis) or even the entire body and scalp (alopecia). It is impossible to predict how much hair is lost. Hair regrowth in alopecia areata is typical for a month, and sometimes years of practice, but can not be guaranteed. The hair sometimes regrows white at least in the first instance. More hair loss is not uncommon. In Totalis alopecia areata and the likelihood of total regrowth is less.
The causes of alopecia areata?
Hair is lost because of them. Affected by the human immune system, which does not recognize the hair roots (follicles) dismissed as "I", but regarded them as "foreign" (autoimmune) Why this happens is not fully understood, and he did not know why only localized areas and were why hair grows back.
Someone with alopecia areata more likely than those without it to develop other autoimmune diseases such as thyroid disease, diabetes and vitiligo (white patches on the skin), although the risk of these diseases is still low. Your doctor may suggest a blood test looks for antibodies that predict whether you can probably develop thyroid problems or pernicious anemia.
Alopecia areata is not contagious and it is not related to diet or vitamin deficiency. Stress, including such things as loss, separation and accidents sometimes seems to be a trigger for alopecia areata.
Alopecia areata is hereditary?
There is a genetic predisposition to alopecia areata and affected his close family members. Thyroid problems or diabetes are also common.
What are the symptoms?
There may be a tingling sensation in the skin of the head. There can be a very disturbing condition, the sufferer, especially if the bald area does not apply to the hair.