When I get my period, sometimes it makes me throw up. Is this normal or bad for me, and what should I do? – Annie* Many girls throw up — or feel like they might throw up — just before or during their periods. Hormone changes are probably the cause, and these feelings usually go away in a day or two. Treating menstrual cramps (with over-the-counter pain relief medicines, heating pads, etc.) can help some girls get rid of the nausea. You also might find that eating smaller, more frequent meals can help. Sometimes, birth control pills can help ease some of the problems that girls get before or during a period. Call your health care provider if: you throw up a lot you throw up for more than a couple of days you can't keep fluids down the throwing up gets worse over time Your provider can see if there's another problem going on and can help make sure that you don't get dehydrated. *Names have been changed to protect user privacy. Back to Articles Related Articles 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 Can Birth Control Help With Cramps? Find out what the experts have to say. Read More My Breasts Ache During My Period. What Can I Do? Find out what the experts have to say. Read More Irregular Periods Wondering whether it's normal to have irregular periods? Get the facts about this common problem. Read More Is it Common to Get Migraines Before Your Period? Find out what the experts have to say. 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.