There are many causes of hair loss but, in the overwhelming majority of males with hair loss, the cause is hereditary Androgenetic Alopecia, more commonly known as “male pattern baldness”. The presence of the hormone Dihydrotestosterone (DHT) is necessary for this to occur.
Myths abound about hair loss but it is most definitely NOT caused by poor circulation, clogged hair follicles, frequent shampooing, the wearing of hats and helmets or the presence of mites. It should also be noted that stress alone does not usually cause hair loss without the presence of the necessary genes and hormones.
Women and hair loss
Most female patients presenting with hair loss have hereditary female pattern hair loss. This condition is still being researched, but the influences in hereditary hair loss in females may be different from those in males. Some of the less common causes of hair loss, which are reversible with treatment, include thyroid disease, iron deficiency, high fever, surgery, “crash diets”, childbirth and certain medications. There are also certain dermatologic scalp disorders that can result in temporary or permanent hair loss, such as lupus, lichen planopilaris, and alopecia areata. more>>
Because some hair loss in women can be caused by underlying medical conditions, it is important that women with undiagnosed hair loss be evaluated by a dermatologist.