Polycystic ovary syndrome (PCOS) is a long-term (chronic) condition. Symptoms tend to start gradually. It is common for PCOS symptoms to be mistaken for some other medical problem.

PCOS causes a wide range of symptoms, so it may be difficult to know when to see your doctor. But early diagnosis and treatment of PCOS will help prevent serious health problems, such as diabetes and heart disease. See your doctor if you have symptoms that suggest PCOS.

If you are a teenage girl, see your doctor if you have:

• Not started menstruating by age 14 and have hair growing on your chest, back, belly, or face (hirsutism).
• Not started menstruating by age 15 or within 2 years of breast and genital hair development.
• Fewer than eight menstrual cycles a year, and this has lasted for 2 years after you started menstruation.
• Severe acne.
• Hair loss from your scalp.
• Excessive hair growth or hair growing in places such as the chest, back, belly, or face.
• Menstrual cycles that are consistently less than 21 days apart or more than 45 days apart.
• Any symptoms of diabetes, such as increased thirst and frequent urination (especially at night), unexplained increase in appetite, unexplained weight loss, fatigue, blurred vision, or tingling or numbness in your hands or feet.
• Skin problems such as acne, oily skin, dandruff, skin tags (acrochordons) in the armpits or neck area, or dark skin patches (acanthosis nigricans) in skin folds or on the neck, groin, or underarms.
• Excess weight gain or upper body obesity (more abdominal fat than hip fat). This is linked to high androgen levels.
• Decided to quit smoking, if you have been smoking. For more information, see the topic Quitting Tobacco Use.

If you are between 20 and 40 years old, see your doctor if you have:

• Menstrual cycles that are consistently less than 21 days apart or more than 35 days apart.
• Regular menstrual cycles but you have been trying unsuccessfully to become pregnant for more than 12 months.
• Vaginal bleeding that lasts more than 8 days; large clots; or excessive spotting.
• Pelvic pain that lasts for more than 4 weeks.
• Excessive hair growth or hair growing on the chest, back, belly, or face (hirsutism).
• Any symptoms of diabetes, such as increased thirst and frequent urination (especially at night), unexplained increase in appetite, unexplained weight loss, fatigue, blurred vision, or tingling or numbness in your hands or feet.
• Skin problems such as acne, oily skin, dandruff, skin tags (acrochordons) in the armpits or neck area, or dark skin patches (acanthosis nigricans) in skin folds or on the neck, groin, or underarms.
• Depression or mood swings. Many women may have emotional problems related to the many physical symptoms of PCOS, such as excess hair, obesity, or infertility.
• Excess weight gain or upper body obesity (more abdominal fat than hip fat). This is also known as android obesity and is related to increased male hormone (testosterone) levels.
• Decided to quit smoking, if you have been smoking. For more information, see the topic Quitting Tobacco Use.