PCOS (Polycystic Ovary Syndrome)
A common hormonal condition affecting reproductive-aged women, causing irregular periods, excess male hormones, and potential fertility challenges.
Overview
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder affecting women of reproductive age worldwide, affecting an estimated 10-13% of reproductive-aged women. It is estimated that up to 70% of women with PCOS worldwide do not know they have this condition. This hormonal imbalance occurs when the ovaries produce unusually high levels of male hormones called androgens, which can disrupt normal reproductive function.
PCOS is a hormonal imbalance that occurs when your ovaries create excess hormones. If you have PCOS, your ovaries produce unusually high levels of hormones called androgens. The condition can affect women differently, with symptoms ranging from mild to severe. PCOS is a chronic metabolic condition that persists beyond the reproductive years. While the exact cause remains unknown, research suggests a combination of genetic factors, insulin resistance, and environmental influences may contribute to its development.
Symptoms
Common Causes
The exact cause of PCOS is unknown. There's evidence that genetics play a role. Women with a family history of PCOS or type 2 diabetes are at higher risk. Research has identified several contributing factors that may work together to trigger the condition.
Insulin resistance is a key factor - an increase in insulin levels causes your ovaries to make and release male hormones (androgens). Increased male hormones suppress ovulation and contribute to other symptoms of PCOS. Environmental pollutants, diet and lifestyle choices, genetic factors, obesity, and gut dysbiosis may affect the origin, prevalence, and modulation of the PCOS phenotype. People with PCOS tend to have chronic low-grade inflammation. Weight gain often precedes the development of clinical features, though PCOS can affect women of all body types.
When to Get Tested
Testing for PCOS may be beneficial if irregular menstrual cycles persist beyond the first few years after periods begin, or if periods become increasingly unpredictable in adulthood. An estimated 5% to 10% of women worldwide between ages 18 to 44 meet criteria for PCOS. PCOS is usually detected in women between the ages of 20 and 30, but the earliest signs can appear in younger girls around the start of puberty.
Women experiencing persistent acne, unexplained hair growth on the face or body, hair thinning, unexplained weight gain, or difficulty conceiving should consider discussing testing with a healthcare provider. It's possible to have PCOS without noticeable symptoms - many people don't even realize they have the condition until they have trouble getting pregnant or are gaining weight for unknown reasons. Early testing can help identify the condition before symptoms become more severe and may prevent long-term health complications.
Recommended Tests
This panel evaluates levels of FSH, LH, estradiol, total testosterone, unconjugated DHEA, TSH, and prolactin, which may help identify potential hormonal imbalances that contribute to symptoms such as fertility issues, irregular periods, mood, or unexplained weight changes. Essential for detecting the elevated androgens and LH/FSH ratio changes characteristic of PCOS.
Total testosterone concentration is the most frequently (70%) abnormal biochemical marker for PCOS. Women with PCOS often have an increased level of both total testosterone and free testosterone. Even a slight increase in testosterone in a woman's body can suppress normal menstruation and ovulation.
DHEA-S is an androgen that is secreted by the adrenal gland. Most women with PCOS tend to have DHEA-S levels greater than 200 ug/dl. Testing DHEA levels helps healthcare providers determine the source of androgens in hyperandrogenic conditions like PCOS when testosterone levels are normal.
Approximately 50% to 70% of all women with polycystic ovary syndrome have some degree of insulin resistance, which may contribute to the hyperandrogenism responsible for the signs and symptoms of PCOS. Many people with PCOS have insulin resistance even if their weight is within a normal range. High fasting insulin levels can appear before blood sugar levels rise.
The HbA1c test measures your average blood glucose levels over the past two to three months. It's great for assessing long-term glucose control and supports the early detection of prediabetes risk. Women with PCOS are at higher risk for insulin resistance, type 2 diabetes mellitus and obesity.
TSH is checked to rule out other problems, such as an underactive or overactive thyroid, which often cause irregular or lack of periods and anovulation. Thyroid problems can look like PCOS, making tests key for diagnosis. These tests help us tell PCOS apart from thyroid issues.
Understanding Results
PCOS is a very complicated endocrine disorder. Blood tests to measure hormone levels should be completed before a PCOS diagnosis is confirmed. Assessing hormone levels serves two major purposes - it helps to rule out any other problems that might be causing the symptoms, and together with personal and family histories, it helps your doctor confirm that you do have PCOS.
Elevated testosterone levels, particularly when combined with irregular menstrual cycles, may suggest PCOS. The LH-to-FSH ratio is usually greater than 3 in many women with PCOS, though this finding alone is not diagnostic. Not everyone with PCOS has high testosterone on blood work - some have clinical signs of excessive androgen without abnormal lab values. When looking at PCOS blood results, knowing normal and abnormal ranges is essential, though results can vary based on factors like age, ethnicity, and lab techniques. Healthcare providers will interpret results alongside symptoms and physical examination findings to determine the most appropriate next steps.
Lifestyle & Prevention
Lifestyle modifications can play a significant role in managing PCOS symptoms and improving overall health. A history of weight gain often precedes the development of clinical features of PCOS, and following a healthy lifestyle has been shown to reduce body weight, abdominal fat, reduce testosterone, improve insulin resistance, and decrease hirsutism in women with PCOS.
Focusing on a balanced diet with lower glycemic index foods, regular physical activity including both cardiovascular exercise and strength training, and stress management techniques may help improve insulin sensitivity and hormone balance. Low-glycemic diets, strength training, and stress reduction improve insulin resistance. Maintaining a healthy weight, getting adequate sleep, and managing stress levels are important components of a comprehensive approach to PCOS management.
Privacy & confidentiality
Testing for PCOS can be done privately and confidentially through LevelPanel. Your test results will not appear in your medical records unless you choose to share them with your healthcare provider. Results are not shared with employers, insurance companies, or anyone else without your explicit consent. No doctor's visit is required to order these tests, allowing you to take control of your health journey at your own pace. For women who may feel embarrassed about symptoms like excess hair growth or irregular periods, private testing provides a comfortable way to get answers without judgment.
Frequently asked questions
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.