Hirsutism is defined as excessive terminal hair growth in androgen-dependent areas of the body in women, which grows in a typical male distribution pattern. Hirsutism is a common clinical problem in women, and the treatment depends on the cause. The condition is often associated with a loss of self--esteem. Hirsutism reflects the interaction between circulating androgen concentrations, local androgen concentrations, and the sensitivity of the hair follicle to androgens. Polycystic ovary syndrome and idiopathic hirsutism are the most common causes of the condition. A woman's history and, physical examination are particularly important in evaluating excess hair growth. The vast majority of women with hirsutism have the idiopathic variety, and the diagnosis is made by exclusion. Serum testosterone level > 200 ng/dL is highly suggestive of adrenal or ovarian tumor. Treatment of hirsutism should be based on the degree of excess hair growth presented by the patient and in the pathophysiology of the disorder. Treatment includes lifestyle therapies, androgen suppression, peripheral androgen blockage, and cosmetic treatments. The current review discusses definition, pathogenesis, physiopathology, differential diagnosis, diagnostic strategies, and treatment. Arq Bras Endocrinol Metab. 2014;58 (2)
PATHOGENESIS OF HIRSUTISMH irsutism is defined as excessive terminal hair growth in androgen-dependent areas of the body in women. Hair appears in a masculine distribution pattern and is coarse. Hirsutism is more than a cosmetic problem. It may be linked to significant underlying diseases, and is often associated with a decreased quality of life, and an impaired self-image of the patient feminine identity (1). The causes of hirsutism may be divided into androgenic factors, non-androgenic factors, and idiophatic hirsutism. Non-androgenic factors are relatively rare, while androgenic causes account for more than 80% of patients, and include polycystic ovary syndrome (PCOS), which affects about 70-80% of hirsute women.Hirsutism must be distinguished from hypertrichosis, which is characterized by increased hair growth in a generalized nonsexual distribution and is independent of androgens. Usually, hypertrichosis presents generalized or localized growth of vellus type (non-terminal) http://dx