The Data on PCOS and Race
PCOS affects approximately 8–13% of women of reproductive age globally, but the distribution and presentation are not uniform across racial and ethnic groups. Studies in the US find that Hispanic/Latina women have significantly higher rates of the insulin-resistant PCOS phenotype and are more likely to develop type 2 diabetes as a consequence. Black women with PCOS have higher androgen levels, higher rates of metabolic syndrome, and greater cardiovascular risk than white women with the same diagnosis. Yet research consistently shows they receive diagnoses later, are less likely to be referred to endocrinology or reproductive medicine, and are underrepresented in the clinical trials that generate the guidelines clinicians follow.
How Diagnostic Criteria Fail Women of Colour
The Rotterdam criteria for PCOS diagnosis (requiring 2 of 3 features: irregular cycles, elevated androgens, polycystic ovary morphology) were developed predominantly from studies of European white women. Hirsutism scoring tools like the Ferriman-Gallwey scale were validated on white women and under-score androgenic hair growth patterns in women of colour (darker hair on darker skin is harder to detect visually). Anti-Müllerian hormone (AMH) reference ranges were also developed from predominantly white populations. The practical consequence: a Black or Latina woman with PCOS may not meet clinical thresholds on tools calibrated for a different population, and may be told her tests are "normal" when they are not.
Implicit Bias in PCOS Care
Multiple studies have documented implicit bias affecting the PCOS care of women of colour. Weight bias intersects particularly harmfully: Black women are more likely to receive weight loss advice as the primary management recommendation rather than medication, despite equivalent metabolic profiles. Pain associated with PCOS (pelvic pain, dysmenorrhoea) is documented to be taken less seriously in Black patients across multiple specialties. A 2021 Journal of Clinical Endocrinology study found that Black women with PCOS were significantly less likely to receive metformin prescriptions than white women with the same metabolic profile, even when controlling for BMI and other variables.
What Women of Colour Can Do When Navigating PCOS Care
Specific, practical steps: request a complete metabolic panel including fasting insulin (not just glucose) and HOMA-IR when asking for PCOS investigation. If the Ferriman-Gallwey score is used to assess hirsutism, ask your clinician to document the score and whether the tool's limitations for your skin tone are being accounted for. Request thyroid antibodies and full thyroid panel alongside PCOS investigation — autoimmune thyroid disease disproportionately affects Black women and overlaps in presentation. If weight loss is recommended without specific metabolic management, ask explicitly: "What is the evidence this will restore my ovulation compared to metformin or inositol? What is your monitoring plan?" You are entitled to evidence-based treatment, not lifestyle advice alone.
The Research Gap That Perpetuates Disparity
Women of colour are underrepresented in reproductive endocrinology research. A 2022 review of PCOS clinical trials found that over 70% of enrolled participants were white, despite the higher metabolic burden in Hispanic and Black women. Reference ranges, diagnostic thresholds, and treatment protocols are therefore calibrated on populations that do not represent the women with the most to gain from accurate diagnosis. Advocacy organisations including the PCOS Awareness Association and Black Girls' Guide to Surviving Menopause are pushing for more representative research. Supporting these organisations, participating in research registries, and documenting your own experience are meaningful contributions to changing the evidence base that clinicians use.
Medical Disclaimer
This article is written for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before making health decisions.
Dr. Amara Osei
Public Health, MD
All TryHerCare articles are written and reviewed by qualified medical professionals. Our content is clinician-reviewed to ensure accuracy and clinical relevance.
