Androgenic (Male type) Hair Loss:
Androgenic hair loss is the most common hair loss seen in men and women in the world. Androgenic hair loss is also called as male type hair loss. The main reason for hair loss is the affect of testosterones on people. This type of hair loss occurs due to the affects of testosterones (androgens) on the genetically sensitive hair follicles.
Even though it is called as "Male type hair loss", women can also get affected by androgenic hair loss and the same time it is the most common type of hair loss in women.
Male Type of Hair Loss in Women:
Androgenetic alopecia is not a disorder seen by only men; because of the possibility of being a sign of psychological stress and internal diseases, it is also an important problem for women.
Most of the patients have normal levels of androgen in blood. If the level of androgen in blood is determined, it is necessary to analyze it in terms of androgen producing tumor. Organs that produce androgen in women are ovary and adrenal glands. In tables, where other symptoms of hyperandrogeny such as polycystic ovarian syndrome occur, androgenetic alopecia is seen quite often. In short it is important that women with alopecia must be examined in terms of hormonal disorder and androgen producing tumors.
It is a hair loss that develops and covers the whole scalp depending upon the disorganization of the hair order and increase of the hair ratio during telogen period. It can happen at any age. It is more common in women.
This type of hair loss occurs as a result of some events of stress. Immediate and severe stress causes an increase in the number of the hair that fall. The reasons for stress, which cause hair loss, could be giving birth, ending pregnancy, starting or stopping to use birth control pills, period before menopause, diet drugs, some emotional problems etc. These events shorten the period that hair uses for rest and a lot of hair is lost after this period.
Chronic Telogen Effluvium:
This situation is not understood completely. In some middle aged women, if the telogen effluvium lasts too long, thinning can be seen in the hair shafts.
Depending on the psychological problems of the person, it is the limited hair loss caused by the person himself due to pulling. It is seen more often in women. It is mostly seen in the forehead area by local hair loss.
In these areas with disorganized shapes, there are new hairs which are not enough long to be pulled.
Alopecia areata, which is also known as pelade, is mostly seen in the young and the middle aged adults. Most patients heal by themselves and they do not need a special treatment. Even though the reason for this disease is not known exactly, patient’s hair follicle’s sensitivity towards androgen or exogen stimulants, psychological stress, hormonal problems such as thyroid diseases, skin diseases are factors that increase the possibility of this type of hair loss.
The disease course cannot be predetermined. Hair usually regrows in a lighter color. Less than half of the patients have regrowth and it does not happen again for five years. Among the factors that affect the course and future of the disease are; disease starting at an early age, prevalence of the disease and its long duration.
This type of hair loss is also visible in the hairy areas such as beard, eyebrow, and eyelash.
It is a global hair loss spreading all over the scalp. It is not noticed until at extreme levels. Diffuse alopecia’s course is changeable, and it is either continuous or periodical depending on the cause.
It is an immediate hair loss that occurs in people who are exposed to radiation or some chemicals. This type of hair loss mostly seen after chemotherapies and radiotherapies applied to cancer patients. In these cases the hair follicles skip resting periods and within 1-3 weeks following, an immediate hair loss takes place.
The hair loss caused by chemotherapy are mostly reversible, hair loss caused by radiotherapy are very rarely reversible.