Before I start my period, I get aches in my breasts. This happens every time. Will it go away when my breasts finish developing? And will wearing a more supportive bra help? – Simone* Lots of girls get aching in their breasts before their periods start. The aches are caused by a decrease in the hormones estrogen and progesterone, which are responsible for a girl's menstrual cycle. For some girls, these aches happen less often as they grow older. But that's not the case for everyone. Some women continue to get aches in their breasts for as long as they have their periods, which is completely normal. So what can you do? Cutting back on salt, sugar, caffeine, and dairy may help. You might feel more comfortable if you wear a supportive bra during this time. Taking an over-the-counter pain reliever like ibuprofen or naproxen can help reduce pain. Regular exercise also may help lessen menstrual breast pain. Obviously, certain types of exercise (like running) may make things worse during the time when your breasts are hurting. So on those days, stick with an exercise that is lower impact, such as biking or walking. *Names have been changed to protect user privacy. Back to Articles Related Articles Why Are My Breasts Sore? Breast soreness is common among teens, but it can still seem worrying when it happens to you. Fortunately, breast pain is rarely serious. Find out why your breasts may hurt and what you can do about it. Read More PMS, Cramps, and Irregular Periods Get the facts on which period problems are normal and which ones might indicate something's going on. Read More All About Periods Periods can be confusing. Get the facts in this article for teens. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.