Some women are so focused on hair removal that they are shocked when confronted by the reality that-yes-our bodies do sprout hair, even in places you may not like. However, while a few sparse hairs are perfectly normal and certainly no cause for alarm, if your growing a Groucho Marx-esque patch on your upper lip or chin, between your breasts, or on your abdomen or inner thighs, it could be a sign of a hormonal imbalance called polycystic ovarian syndrome (PCOS).
PCOS is characterized by high blood levels of androgens ( male hormones), and its the most common hormonal disorder in women during their reproductive years. Beyond abnormal hair growth, symptoms can include acne, obesity, and prolonged menstrual periods, and it can lead to infertility and eventually to serious complications such as heart disease, diabetes, and stroke. (When diagnosed and treated early, these complications can be avoided). If you notice any combination of these symptoms, talk to your doctor about it. She may do a blood test to check your hormone levels as well as perform a pelvic exam and ultrasound to see if there are any abnormalities in your ovaries.
( Seattle Woman Magazine. Dr. OZ)