Hair Loss Causes

Hair Loss Causes
Normal hair loss is limited to 50 - 100 hairs per day, as a part of renewal process. Every human being suffers from extensive hair loss at least once in a life time, due to various reasons. Those factors include: medication, radiation, chemotherapy, exposure to chemicals, hormonal and nutritional factors, thyroid disease, generalized or local skin disease and stress. Some of these causes are temporary, some permanent.
Hormones stimulate hair loss, but also cause hair loss when some hormonal misbalance happens. It can affect men and women, causing hair thinning. Generally, men lose their hair in a concentrated, specific pattern from the front through to the crown. Women, on the other hand lose their hair without any specific pattern. This type of hair loss is caused by the androgen DHT, or Dihydrotestosterone. Everyone has DHT that is produced by their bodies, but not everyone suffer from hair loss, so there has to be another factor involved. It is actually having follicles that have a greater number of Androgen receptors for the DHT to attach to. This is the component that is inherited through the genes. To date the most effective preventative treatments are anti androgens, drugs that prevent the creation of DHT.
The other cause of hair loss is giving birth. After pregnancy a number of women experience a hair loss, which is caused by hair simultaneously entering the resting phase. Within two to three months after giving birth, some women will notice large amounts of hair falling out. This can last one to six months, but resolves completely in most cases. This condition is caused by the hormonal changes that take place after a woman's body recovers from her pregnancy.
Birth control pills can cause Androgenic Alopecia with women who have a genetic predisposition to suffer from it and can occur at a much younger age. The hormonal changes that occur trigger the onset of the Androgenic Alopecia. If there is a history of female pattern loss in the family, woman should ask her doctor for an opinion before using pills. After the discontinuation of the pill the woman may notice that her hair begins shedding two or three months later. The process may continue for six months when it usually stops. In some cases the process cannot be reversed and the woman may not regrow some of the hair that was lost.
Type of hair loss called Alopecia areata is believed to be caused by the immune system reacting to hair follicles as if they were foreign tissue and attacking them. The hair loss is usually limited to a coin sized area and all the hair in the area is lost leaving a smooth round patch. In a more severe rarer condition called Alopecia Totalis , all hair on the entire body is lost, including the eyelashes.
Beside these causes, there are all kinds of other, such as high fever, severe infection, deficient diet, cancer treatments, major surgery, chronic illness, fungus infection or some kind of mechanical damage that can be a trigger to the extensive loss of your hair.