A twinge there, an ache there—breast pain is something most women have experienced at one point or another. Luckily, in most cases, it's nothing to worry about, says Sharon Rosenbaum Smith, MD, a breast surgeon at Mount Sinai Roosevelt Hospital in New York City. Your period, your workout, or even wearing the wrong bra can cause breast tenderness.

Next time your boobs hurt, use this chart to figure out the cause.

More about your  breasts:

12 Things That (Probably) Don't Increase Breast Cancer Risk

6 Questions Every Woman Has About Her Breasts

5 Myths and Facts About Sagging Breasts