The Washington Times on Tuesday examined polycystic ovary syndrome, a hormonal imbalance that affects approximately 5% to 10% of U.S. women of reproductive age and is the most common cause of infertility in women. PCOS can cause a lack of ovulation, polycystic ovaries, irregular menstruation or missed periods, and clinical or biochemical evidence of high androgen levels -- such as facial hair or male pattern balding. Other symptoms include weight gain, insulin resistance and skin discoloration. The cause of PCOS is unknown, but some women might be genetically predisposed to the syndrome, according to Richard Blake, an associate professor in the OB/GYN department at Howard University. PCOS treatments include a low-sugar diet, medications to control blood sugar levels, exercise and birth control pills or ovulation-inducing medications to regulate the menstrual cycle and improve fertility (Widhalm, Washington Times, 8/30).