How to Say "menstrual cycle" in Spanish
The Spanish word for “menstrual cycle” is “periodo” — B2 level.
English → SpanishB2
nounB2neutral/informal
medical term

Examples
Mi periodo siempre llega el mismo día.
My period always arrives on the same day.
Durante su periodo, ella prefiere descansar.
During her period, she prefers to rest.
Gender Trap
Even when referring to menstruation, 'periodo' remains masculine: 'el periodo'. Be careful, as other common words for this, like 'la regla,' are feminine.
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