Polycystic Ovary Syndrome (PCOS) is a very common hormone disorder that affects 5-10% of all women. It is a leading cause of infertility and one of the most under-diagnosed diseases in the United States. PCOS is characterized by seemingly unrelated symptoms and may include irregular or absent periods, lack of ovulation, weight gain, acne, excessive facial hair, and infertility. Surprisingly, most women with PCOS do not even know they have it. Most women are never officially diagnosed until they begin trying to conceive and seek help in getting pregnant.