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Polycystic Ovary Syndrome (PCOS) Blood Test
Blood test used in the management and diagnosis of PCOS. Total testosterone, free testosterone, sex-hormone-binding globulin, oestradiol, free androgen index, Luteinising hormone, Follicle Stimulating Hormone, Prolactin, Thyroid function (TSH and T4), HbA1c, Vitamin D, Cholesterol profile.
Common Q&A about PCOS Blood Tests
Our FAQ section is designed to address common questions you may have, from how our treatments work to what you can expect during and after your session.
Our team is always available to provide additional support if you need more personalised guidance, ensuring that you feel informed and confident every step of the way.
Common blood tests for PCOS include:
- Hormone levels: Testosterone, LH (luteinizing hormone), FSH (follicle-stimulating hormone), and DHEA (dehydroepiandrosterone)
- Insulin and glucose levels
- Thyroid function tests
- Cholesterol and lipid profile
Hormone testing helps identify elevated levels of androgens (male hormones) like testosterone, which are often higher in women with PCOS. It also checks for imbalances in other reproductive hormones like LH and FSH.
Fasting is usually required for blood tests that measure glucose, insulin, or cholesterol levels, typically for 8-12 hours. Hormone tests do not generally require fasting.
No, blood tests alone do not confirm PCOS. Diagnosis is based on a combination of symptoms, blood test results, and sometimes an ultrasound of the ovaries.
Women with PCOS often have insulin resistance. Testing glucose and insulin levels helps evaluate how your body is managing blood sugar, which can indicate a risk for type 2 diabetes.
Normal testosterone levels in women are usually between 15-70 ng/dL. Elevated testosterone levels may suggest PCOS, as well as symptoms like acne, excessive hair growth, or irregular periods.
Thyroid disorders, like hypothyroidism, can have symptoms similar to PCOS, such as weight gain and irregular periods. Testing thyroid function helps rule out these conditions.
In PCOS, the ratio of LH to FSH is often higher than normal. Elevated LH levels in comparison to FSH can contribute to irregular ovulation, a key symptom of PCOS.
Blood tests for PCOS may be done initially to help with diagnosis. After diagnosis, additional tests may be recommended periodically to monitor insulin, glucose, and cholesterol levels, particularly if you're at risk of diabetes or heart disease.
Yes, hormone levels such as FSH, LH, and testosterone can provide insight into ovulation issues, which can impact fertility. High androgen levels and insulin resistance may also interfere with regular ovulation, leading to fertility challenges.
