✅ Not only is this true—some research suggests the number may be even higher. PCOS affects up to 10% of women of reproductive age, and many go undiagnosed. This common hormonal condition is linked to symptoms like acne, unwanted facial/body hair, weight gain, irregular periods, and is one of the leading causes of infertility. Understanding the signs is the first step. If you think PCOS might be impacting your health or fertility, talk with your healthcare provider about your options for support.