Polycystic ovary syndrome (PCOS) is a common endocrine system disorder that affects women during their childbearing years. It causes small fluid-filled sacs to develop on the ovaries and can lead to irregular periods, excess hair growth, and fertility issues. Left untreated, PCOS increases the risk of diabetes, heart disease, and other health problems. Lifestyle changes like weight loss and medication can help manage symptoms and health risks. Treatment aims to address individual symptoms and may include birth control pills, diabetes medications, or fertility treatments like clomiphene or IVF.