Polycystic Ovarian Syndrome, or PCOS, is one of the leading causes of infertility. Almost ten percent of women of childbearing age have PCOS but many of them have no idea about it until they actually try to conceive. Infertility is not the only symptom; here are other common signs: weight gain acne (often red, sore and cystic acne is a symptom) excessive hair growth (more noticeable on the face) irregular menstrual cycles (sometimes so irregular that they only occur once every few months) severe...