How Often Do Women Have a Period?


Quick Answer

According to the Office on Women's Health, the average woman has a period every 28 days. It's not uncommon for the time between periods to vary anywhere between 21 and 35 days.

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How Often Do Women Have a Period?
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Full Answer

The Office on Women's Health says that the menstrual cycle, which provides important hormones to the body, starts on the first day of a woman's period. That cycle lasts until the start of her next period. The time of a woman's menstrual cycle varies depending on her age and level of hormones. For example, the average cycle range for adults is between 21 and 35 days; however, the cycle ranges between 21 and 45 days for teenagers.

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