10 Things That Mess With Your Period

Reasons why your period is heavy, erratic, or missing altogether—and what to do about it.
confused-period

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Period problems

by Kiera Aaron

Wouldn't it be great if you could circle a date on your calendar and have your period actually show up then? You'd plan beach trips around it and you'd never be caught without a tampon. Unfortunately, a little variation is typical: "The average cycle is 28 days—that's 28 days between the first day of one period and the first day of your next period—but anywhere in between 24 and 31 days is considered normal," says Veronica Lerner, MD, assistant professor of obstetrics and gynecology at NYU Langone Medical Center. "Still, a highly irregular period is usually a sign that something else isn't right in your body." Take note of these 10 things that could be messing with your menstrual cycle, and see your doc if anything seems too far off.

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