Polycystic ovary syndrome (PCOS) is a hormonal disorder that affects women of reproductive age. Common signs and symptoms of PCOS include irregular periods or no periods, excessive hair growth (hirsutism), acne, weight gain or difficulty losing weight, and ovarian cysts. Other possible symptoms include thinning hair, darkening of the skin, and fertility problems. PCOS can vary in presentation, and not all women with the condition will experience the same symptoms. If you suspect you have PCOS, it is recommended to consult with a healthcare provider for proper diagnosis and management.