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Dark pink gradient graphic reading 'Irregular Periods & PCOS' with a cycle ring motif and the Toolzen logo
Aug 3, 2026 · 5 min read

Irregular Periods & PCOS: What Your Cycle Is Telling You

Quick answer: an occasional off-schedule cycle is normal. Cycles that are consistently shorter than 21 days, longer than 35, or that swing by more than 7 days are worth attention — and PCOS, affecting roughly 1 in 10 women, is the most common medical cause.

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