Talking about personal subjects like periods (menstruation) can make parents and kids feel a little uncomfortable. But kids need reliable information! Helping your kids understand their bodies will help them make good decisions about their health. When Should I Talk to My Kids About Periods? Talking about periods shouldn't be one big talk at a particular age. Instead, start the conversation early and slowly build on your child's understanding. Girls and boys need reliable information about periods. So make sure you talk to your sons too! For example, if your 4-year-old sees a tampon and asks what it's for, you could say, "Women bleed a little from their vagina every month. It's called a period. It isn't because they're hurt. It's how the body gets ready for a baby. The tampon catches the blood so it doesn't go on the underwear." Over the years, you can give your child more information as he or she is ready. If your child doesn't ask questions about periods, you can bring it up. By the time they're 6 or 7 years old, most kids can understand the basics of periods. Look for a natural moment to talk about it, such as: when kids asks about puberty or changing bodies if your child asks where babies come from if you're at the store buying pads or tampons Ask if your child knows about periods. Then, you can share basic information, such as: As a girl develops into a woman, her body changes so she can have a baby when she grows up. Part of that is getting a place ready for the baby to grow inside the mom. The place a baby grows is called a uterus. Every month the uterus wall gets ready for a baby. If there is no baby, the uterus wall comes off and bleeds a little. The blood comes out a woman's vagina. The body makes a new wall every month, just in case there is a baby. Answer any questions simply and directly. What Should I Talk About? What you talk about depends on your child's age and level of development. Here are some questions that most kids have: When do most girls get their period? Most girls get their first period when they're between 10 and 15 years old. The average age is 12, but every girl's body has its own schedule. Although there's no one right age for a girl to get her period, there are some clues that it will start soon. Typically, a girl gets her period about 2 years after her breasts start to develop. Another sign is vaginal discharge fluid (sort of like mucus) that a girl might see or feel on her underwear. This discharge usually begins about 6 months to a year before a girl gets her first period. What causes a period? A period happens because of changes in hormones in the body. Hormones are chemical messengers. The ovaries release the hormones estrogen and progesterone . These hormones cause the lining of the uterus (or womb) to build up. The built-up lining is ready for a fertilized egg to attach and start developing. If there is no fertilized egg, the lining breaks down and bleeds. Then the same process happens all over again. It usually takes about a month for the lining to build up, then break down. That is why most girls and women get their periods around once a month. Do periods happen regularly when menstruation starts? For the first few years after a girls starts her period, it may not come regularly. This is normal at first. By about 2–3 years after her first period, a girl's periods should be coming around once a month. Can a girl get pregnant as soon as her period starts? Yes, a girl can get pregnant as soon as her period starts. A girl even can pregnant right before her very first period. This is because a girl's hormones might already be active. The hormones may have led to ovulation (releasing of the egg from the ovary) and the building of the uterine wall. If a girl has sex she can get pregnant, even though she has never had a period. How long do periods last? Periods usually last about 5 days. But a period can last shorter or longer. How often does a period happen? Periods usually happen about once a month. But some girls get their periods around every 3 weeks. And others only get a period about once every 6 weeks. What is PMS? PMS (premenstrual syndrome) is when a girl has emotional and physical symptoms that happen before or during her period. These symptoms can include moodiness, sadness, anxiety, bloating, and acne. The go away after the first few days of a period. What if I Have Trouble Talking to My Kids About Periods? If you don't feel comfortable talking with your kids about periods, make sure they have another way to get this information. Maybe watching a video or reading a book together would be easier. You also can ask your doctor, nurse, school counselor, or a trusted family member to talk to your child. When Should I Call the Doctor? Most girls don't have any problems with their periods. But call your doctor if your daughter: is 15 and does not have her period started developing breasts more than 3 years ago and does not have her period is more than 2 years from her first period and her periods still do not come every 3–6 weeks (especially if she misses three or more periods in a row) has severe cramps, not relieved by ibuprofen (Advil, Motrin, or store brand) or naproxen (Aleve, Midol, or store brand) has very heavy bleeding (bleeding that goes through a pad or tampon faster than every 2 hours) has severe PMS that gets in the way of her everyday activities Looking Ahead The more that kids understand about their bodies, the better they're able to make good, healthy choices. Make sure your children get reliable information from you or another trusted source. Back to Articles Related Articles Sexual Development Big physical and emotional changes happen during puberty and the teen years. These articles can help you become a source of information, comfort, and support for your kids. Read More PMS, Cramps, and Irregular Periods Most period problems are common and normal. But some might be a sign that there's something else going on. Read More Questions and Answers About Sex Answering kids' questions about sex is a responsibility many parents dread. But by answering these questions honestly, parents can help foster healthy feelings about sex. Read More A Parent's Guide to Surviving the Teen Years You've lived through 2 AM feedings, toddler temper tantrums, and the back-to-school blues. So why is the word "teenager" causing you so much anxiety? Read More Vaginal Discharge: What's Normal, What's Not Normal vaginal discharge has several purposes: cleaning and moistening the vagina and helping to prevent infections. But sometimes discharge indicates there's a problem. Get the facts on what's normal and what's not. Read More Tampons, Pads, and Other Period Supplies When it comes to pads and tampons, there are lots of choices. It may take some experimenting before you find what works best for you. Here are some tips. Read More Getting Your Period at School Lots of girls worry what to do if they get their periods at school. Find out more in this article for kids. Read More Female Athlete Triad Female athlete triad is a combination of three conditions: disordered eating, amenorrhea (loss of a girl's period), and osteoporosis (a weakening of the bones). Read More Five Things Girls Want to Know About Periods Girls have lots of questions about periods. Here are five good ones - and the all-important answers! Read More Period Cramps Cramps can put a crimp in a girl's daily routine. Find out what period cramps are and how to handle them. Read More When Will I Get My Period? It's normal to be a little worried or anxious about getting your period. Find out more in this article for kids. Read More Irregular Periods Wondering whether it's normal to have irregular periods? Get the facts about this common problem. Read More Gyn Checkups Girls should get their first gynecological checkup between ages 13 and 15. Find out what happens during a yearly gyn visit -- and why most girls don't get internal exams. Read More I Think I Had My First Period. How Can I Be Sure? Find out what the experts have to say. Read More Female Reproductive System Why do girls get periods? What goes on when a woman gets pregnant? What can go wrong with the female reproductive system? Find the answers to these questions and more in this article for teens. 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 All About Periods Getting a period is a natural part of becoming a woman. Find out more in this article for kids. Read More Pads and Tampons When a girl gets her period, she'll need some supplies. Find out more in this article for kids. Read More Female Reproductive System Learning about the female reproductive system, what it does, and the problems that can affect it can help you better understand your daughter's reproductive health. Read More About Birth Control: What Parents Need to Know Talking to your kids about sex can be a challenge. But discussing issues like birth control can help lower teens' risk of unintended pregnancy or getting an STD. 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.