Female facial hair is one symptom of hirsutism, the unwanted growth of thick, dark, hair on various areas of the female body. Excess and unwanted facial hair can be distressing for many women, and is often brought on by an increase in the production of the male sex hormone testosterone. Because of this, facial hair growth may be accompanied by a deepening of the voice.
One of the main causes of testosterone overproduction in women is Polycystic Ovary Syndrome (PCOS). Occasionally, other medications may be responsible for the hair growth. As well as treating the condition causing the growth, women can use a variety of methods to remove the unwanted hair.