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Why Does the Incidence of Polycystic Ovaries Fluctuate So Much? – Fertility Plus
Fertility Plus/LinkedIn
Jul 12, 2026, 14:56

Why Does the Incidence of Polycystic Ovaries Fluctuate So Much? – Fertility Plus

Fertility Plus shared a post on LinkedIn:

“Why does the incidence of polycystic ovaries fluctuate so much?

Polycystic ovary syndrome (PCOS) is the most common hormonal condition affecting reproductive-aged women, yet its recorded global prevalence varies widely!

Here are some key reasons for this fluctuation:

  1. Shifting Diagnostic Criteria: The prevalence can be 12.1% using the Rotterdam criteria but drops to 7.9% under the stricter NIH criteria.
  2. Inconsistent Symptom Definitions: Different studies use varying thresholds for symptoms like hirsutism, leading to different diagnosis rates.
  3. Inaccurate Administrative Databases: Health records often show low rates (0.13% to 5.2%) due to misclassification and lack of access to specialists.
  4. Genuine Regional Differences: Adult rates are highest in the Eastern Mediterranean (15.1%) and South-East Asia (14.3%), compared to 10.5% in the Americas.

Without consistent global standards, millions of women with PCOS remain underdiagnosed or misclassified. Let’s raise awareness!
Neven, A. C. H., Forslund, M., Ranasinha, S., Sethi, P., Dhungana, R. R., Mousa, A., Tay, C. T., Teede, H., and Boyle, J. A. (2026). Prevalence of polycystic ovary syndrome: a global and regional systematic review and meta-analysis. Human Reproduction Update, 32(3), 277–312.”

Proceed to the video attached to the post.

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