Hair loss is referred to as a male problem, but it's not quite true. It occurs in both sexes, but women do not reach the scale of a complete lack of hair as men. However, it often cites that 20% of women in their life has some problems with hair loss
The hair on the head with a cyclical growth. The hair, the emergence, is actively growing about 1000 days (daily 0.35 - 0.4 mm), and can reach a length of 50 cm. Then enter the resting phase that lasts about 100 days and finally turns out. Daily normal drop from 50 to 100 hairs. Then folikula1 cells begin to produce new hair. The number of cycles of hair is genetically determined for each hair with every man. Cycle length decreases with age.
The most common form of baldness in women (and men) is androgenetika alopecia, hair loss caused by sex hormones. (The word alopecia in Greek, means fox mange, and medical terminology means the occurrence of hair loss, ie. Baldness.) This is a progressive hereditary form of hair loss is a result of increased sensitivity of hair follicles to androgens (male sex hormones), particularly testosterone. Type of inheritance is not accurately determined. Given that the pathogenesis of the disease have a major role sex hormones, that it occurs after puberty. It begins most often between 18 and 25 age, but women can begin to 40 year.
Testosterone, through its active metabolite inhibits the growth of hair in the hypersensitive hereditary hair follicles. This process occurs in men with normal testosterone, and some women can be found elevated testosterone levels.
In women with mild proređenost temenoj hair in the head region, but it never comes to a complete hair loss as men. If there is a total loss, then it comes to women and endocrine diseases in this field should look for the cause of baldness.
Women are given hormone therapy, antiandrogens, which reduce and prevent production of androgens. When a woman is rarely necessary to resort to hair transplants.
However, there is another type of baldness called alopecia areata, where hair loss "to seal", so stay on your head round, clearly limited field in which the hair is completely lacking. The cause of this disease is unknown, there is a family phenomenon in a quarter of cases, but it is considered that the nature of autoimmune disease because it often occurs associated with other autoimmune diseases. Is often driven by emotional stress or other factors.
Women more often, and the disease can develop in early childhood. Very rarely, hair loss can progress to complete hair loss, and sometimes loss of hair on the body. The disease is unpredictable. Sometimes it takes several months to years, sometimes for life. Basically the new episodes occur throughout life. It is used several methods of treatment, but it is difficult to assess treatment success. It is often important psychological support, especially in severe disease.
Often, hair loss may be due to certain stressful situations: a difficult emotional stress, childbirth, high fever, surgery, decreased thyroid function, a variety of chronic systemic diseases, the use of certain drugs, and even oral contraceptives (birth control pills). Hair starts to decline three to four months after the stressful situation, that day can drop to 700 hairs, and it may be a decline and 50% of hair. However, this process is reversible, after two to three months leading to a gradual restoration of hair and it will be completely restored in the coming months.Treatment is not necessary.
It may be that the hair falls sharply after the action of certain factors. This hair loss caused by severe trauma: cytostatic therapy (the treatment of malignancy), ionizing radiation, drastic diets and others. In these cases the hair grows back.
As a result of mechanical injury, certain infections and diseases that lead to the formation of scar transformed tissue of the head, there is a permanent loss of hair on the scar area.
Incorrect speculation that baldness result of many years of wearing long hair or wearing caps and hats.