What Does Premature Mean?

Quick Answer

A premature baby, also called a preemie, is a baby that is born too early -- before it has finished growing inside the mother. Most babies need about 40 weeks to fully develop, but premature babies arrive before 37 weeks. They often need extra help from doctors until they finish growing and get stronger.

See How This Explanation Changes By Age

Age 4

You know how when you bake cookies, they need to stay in the oven long enough to be ready? If you take them out too early, they aren't done yet. Well, babies need time to grow inside Mommy's tummy too, and sometimes a baby comes out before it's all the way ready.

A baby that comes too early is called a premature baby, or a preemie for short. Preemies are usually smaller than other babies because they didn't have enough time to finish growing. They might look tiny and delicate.

Because preemies came out before they were finished growing, they need special help. Doctors and nurses put them in a warm little bed called an incubator that keeps them cozy and safe. It's like a warm little nest at the hospital. The doctors watch over them and help them get stronger.

Premature babies might need to stay at the hospital for a while, but the good news is that most of them grow up to be just as healthy and strong as everyone else! They just needed a little extra time and help at the beginning.

Explaining By Age Group

Ages 3-5 Simple Explanation

You know how when you bake cookies, they need to stay in the oven long enough to be ready? If you take them out too early, they aren't done yet. Well, babies need time to grow inside Mommy's tummy too, and sometimes a baby comes out before it's all the way ready.

A baby that comes too early is called a premature baby, or a preemie for short. Preemies are usually smaller than other babies because they didn't have enough time to finish growing. They might look tiny and delicate.

Because preemies came out before they were finished growing, they need special help. Doctors and nurses put them in a warm little bed called an incubator that keeps them cozy and safe. It's like a warm little nest at the hospital. The doctors watch over them and help them get stronger.

Premature babies might need to stay at the hospital for a while, but the good news is that most of them grow up to be just as healthy and strong as everyone else! They just needed a little extra time and help at the beginning.

Ages 6-8 More Detail

A normal pregnancy lasts about 40 weeks, which is roughly nine months. That's how long most babies need to grow and develop before they're ready to be born. But sometimes a baby arrives early, before all that growing is done. When a baby is born before 37 weeks, it's called premature, and the baby is called a preemie.

Premature babies are usually smaller and lighter than full-term babies. Some preemies are very tiny -- some can even fit in the palm of an adult's hand! Their skin might look thin and you might be able to see little veins through it. They look fragile because parts of their body haven't finished developing yet.

Most premature babies go to a special part of the hospital called the NICU, which stands for Neonatal Intensive Care Unit. It's a room full of special equipment designed just for tiny babies. Preemies might be put in an incubator, which is like a clear warm box that keeps them at the right temperature.

In the NICU, doctors and nurses help the baby do things their body isn't quite ready to do on its own. Some preemies need help breathing. Some need to be fed through a tube because they're too small to drink from a bottle. The nurses and doctors take amazing care of these little babies.

Here's the really good news: most premature babies catch up! With medical care, they grow and get stronger. Many preemies go home from the hospital after a few weeks and grow up to be perfectly healthy kids. It's amazing what doctors can do to help these tiny babies.

Ages 9-12 Full Explanation

A premature baby is one that's born before 37 weeks of pregnancy, when a full-term pregnancy is about 40 weeks. That might not sound like a big difference, but those last few weeks of pregnancy are really important for development. During that time, the baby's brain is growing rapidly, the lungs are maturing, and the baby is putting on weight needed to survive outside the womb.

Preemies are classified by how early they arrive. A baby born at 34-36 weeks is considered 'late preterm' and usually does pretty well. A baby born at 28-33 weeks is 'very preterm' and needs more medical support. A baby born before 28 weeks is 'extremely preterm' and faces the biggest challenges. Thanks to modern medicine, even very early preemies have a much better chance of survival than they did decades ago.

Most preemies spend time in the NICU -- the Neonatal Intensive Care Unit. This is a specialized hospital area filled with high-tech equipment designed for fragile newborns. Preemies might be in incubators to regulate their temperature, on ventilators to help them breathe, or receiving nutrition through IV lines because they can't eat on their own yet.

If your new sibling is a preemie, the experience can be scary and confusing. You might not be able to hold the baby for a while, or you might only visit during certain hours. Your parents will be stressed and spending a lot of time at the hospital. It's okay to feel worried, sad, or even frustrated about the situation.

The NICU stay can range from a few days to several months depending on how early the baby arrived. Parents often describe it as an emotional rollercoaster -- good days and bad days. Eventually, when the baby can breathe, eat, and maintain body temperature on their own, they get to go home.

Most premature babies grow up perfectly healthy. They usually 'catch up' to their peers within the first couple of years. Some preemies need a little extra support early on, like physical therapy, but the majority go on to live completely normal lives. Many people you know might have been preemies and you'd never guess it.

Want explanations personalized for YOUR child's exact age?

Download WhyBuddy free on the App Store. Get instant, age-appropriate answers to any question your child asks.

Download on the App Store

Tips for Parents

Premature can be a challenging topic to discuss with your child. Here are some practical tips to help guide the conversation:

D

DO: Follow your child's lead. Let them ask questions at their own pace rather than overwhelming them with information they haven't asked for yet. If they seem satisfied with a simple answer, that's okay — they'll come back with more questions when they're ready.

D

DO: Use honest, age-appropriate language. You don't need to share every detail, but avoid making up stories or deflecting. Kids can sense when you're being evasive, and honesty builds trust.

D

DO: Validate their feelings. Whatever emotion your child has in response to learning about premature, acknowledge it. Say things like 'It makes sense that you'd feel that way' or 'That's a really good question.'

D

DON'T: Don't dismiss their curiosity. Responses like 'You're too young for that' or 'Don't worry about it' can make children feel like their questions are wrong or shameful. If you're not ready to answer, say 'That's an important question. Let me think about the best way to explain it, and we'll talk about it tonight.'

D

DO: Create an ongoing dialogue. One conversation usually isn't enough. Let your child know that they can always come back to you with more questions about premature. This makes them more likely to come to you rather than seeking potentially unreliable sources.

Common Follow-Up Questions Kids Ask

After discussing premature, your child might also ask:

Why are some babies born early?

There are many reasons. Sometimes the mother has a health condition that triggers early labor. Sometimes there's a problem with the pregnancy. Sometimes doctors decide to deliver the baby early because it's safer for the mom or baby. And sometimes it just happens without a clear reason.

What is the NICU?

NICU stands for Neonatal Intensive Care Unit. It's a special section of the hospital designed for sick or premature newborns. It has special equipment like incubators, monitors, and breathing machines. The doctors and nurses there are specifically trained to care for tiny, fragile babies.

Can I visit a premature baby in the hospital?

It depends on the hospital's rules. Many NICUs allow siblings to visit, but you might need to wash your hands really well and wear a gown. Some hospitals have age restrictions. Ask your parents to check with the nurses about visiting.

Will a premature baby be small forever?

No! Most premature babies catch up in size within the first year or two. They might be smaller than other babies their age at first, but as they grow, the difference usually disappears. By the time they start school, most preemies are the same size as their classmates.

How small can a premature baby be?

Some very early preemies can weigh as little as one pound -- about the weight of a football. A full-term baby usually weighs between 6 and 9 pounds. Even though these tiny babies are incredibly small, modern medicine can help many of them survive and thrive.

You Might Also Want to Explain

Want explanations personalized for YOUR child's exact age?

Download WhyBuddy free on the App Store. Get instant, age-appropriate answers to any question your child asks.

Download on the App Store