Excessive hair growth in women is usually from too much male hormone (androgen). A common cause is polycystic ovarian syndrome (PCOS). In most cases, however, the specific cause is never identified. It tends to run in families. In general, hirsutism is a harmless condition. But many women find it bothersome, even embarrassing. If hirsutism develops suddenly and is accompanied by other typical male features, such as deepening voice, acne, or increased muscle mass, it may be caused by a more serious disorder. These causes, such as hormone-secreting tumors or cancer, are rare. Rare causes include: |