i noticed the 'singh' in your nick. if i'm right you're a sikh. this might help you.
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Background: In 1907, the first example of traction alopecia was reported in girls and women from Greenland who styled their hair in a ponytail. A similar pattern of hair loss was later noted in Japanese women who wear a traditional hairdo. In Sikhism, one of the religions practiced in India, men grow both scalp hair and beard hair. To keep their hair from falling in front of their face, it is tightly pulled into a bun. This practice has led to traction alopecia in Sikh men. The tight rolling of beard hair into a pocket in the submandibular region also results in a similar phenomenon. The use of hair extensions, a common treatment for male or female pattern baldness, is also associated with a similar type of hair loss.
Traction alopecia is a common cause of hair loss because of pulling forces exerted on the scalp hair. Two types of traction alopecia exist: marginal and nonmarginal. Unlike trichotillomania, a psychiatric disorder of compulsive hair pulling that leads to patchy hair loss, traction alopecia is unintentionally induced by various hairstyling practices (eg, braiding). In the initial stages, this hair loss is reversible. With prolonged traction, alopecia can be permanent. Physicians, especially dermatologists, must recognize this condition early to prevent irreversible hair loss
