Excessive growth of facial or body hair in women is called hirsutism. It is not a disease. The condition usually develops during puberty and becomes more pronounced as the years go by. However, an inherited tendency, over-production of male hormones (androgens), medication, or disease, can cause it to appear at any age. Women who have hirsutism usually have irregular menstrual cycles. They sometimes have small breasts and deep voices, and their muscles and genitals may become larger than women without the condition. hirsutism is most often associated with polycystic ovary syndrome.