Overview
PCOS is a condition in which the body may make higher-than-usual levels of certain hormones, especially androgens. This can affect ovulation, which means the ovaries may not regularly release eggs. Over time, PCOS can affect periods, fertility, metabolism, mood, and appearance.
Key Symptoms
Symptoms can vary widely from person to person. Common symptoms include irregular, infrequent, or absent periods; acne; thinning scalp hair; increased facial or body hair; and weight gain or difficulty managing weight. Some people also have trouble becoming pregnant, darkened skin patches, or skin tags.
Causes and Risk Factors
The exact cause of PCOS is not fully understood. It appears to involve a mix of genetics, hormone imbalance, and insulin resistance, which is when the body does not respond well to insulin. A family history of PCOS, type 2 diabetes, or related metabolic problems may increase risk.
Who Is Affected
PCOS affects people of reproductive age who have ovaries. It can begin around the teen years, but symptoms may be recognized later, especially if periods were assumed to be irregular for other reasons. PCOS occurs in people of many body sizes, ethnic backgrounds, and regions.
Diagnosis and Tests
There is no single test that confirms PCOS for everyone. A healthcare professional may ask about menstrual patterns, weight changes, skin and hair symptoms, and pregnancy plans, then do a physical exam and blood tests. Ultrasound may be used in some cases, and testing may also help rule out other causes of similar symptoms.
Treatment Categories
Treatment depends on symptoms, age, and whether pregnancy is desired. Care may include support for menstrual regularity, acne or unwanted hair, fertility concerns, and metabolic health such as blood sugar, cholesterol, and blood pressure. Many people benefit from a mix of medical care, nutrition support, physical activity, and long-term monitoring.
Living With It
PCOS can affect emotional well-being as well as physical health. Some people experience stress, low mood, body-image concerns, or frustration with delayed diagnosis. Regular follow-up can help track symptoms and lower the risk of complications such as diabetes, sleep problems, and uterine lining changes.
Diet and Lifestyle
Healthy eating patterns, regular movement, good sleep, and stress management can support overall health with PCOS. Even modest weight loss may improve symptoms for some people who are overweight, but PCOS also occurs in people who are not overweight. Lifestyle changes are not a substitute for medical evaluation when periods are very irregular, fertility is a concern, or symptoms are worsening.
When to Seek Medical Care
See a healthcare professional if periods are very irregular, absent, very heavy, or hard to predict. Medical care is also important for new or worsening excess hair growth, acne, scalp hair thinning, trouble becoming pregnant, or symptoms of high blood sugar such as unusual thirst or frequent urination. Early evaluation can help identify related conditions and guide follow-up.
Questions to Ask a Healthcare Professional
You may want to ask what tests are needed, what other conditions should be ruled out, and how PCOS may affect fertility and long-term health. It can also help to ask how often to check blood sugar, cholesterol, blood pressure, and the uterine lining, and what kinds of nutrition or mental health support may be useful.