Remember the biology class you had in high school? Well, maybe you don't or maybe now that you have a child, your interest in how the body works has grown.

Just as professional sports stars need medical care to keep them playing their best, so do student athletes. That's why it's important to make sure that kids and teens get a sports physical.

What should parents do when their child wants to quit a sport?

Learn more about head injuries (head trauma).

ACL injuries can happen in active and athletic kids when excessive pressure is put on the knee joint, resulting in a torn ligament.

Many kids will have a broken bone at some point. Here's what to expect.

Learn about broken collarbones (or clavicle fractures), a common sports injury in kids.

Concussions are serious injuries that can be even more serious if kids don't get the time and rest needed to heal them completely.

Ear injuries not only can affect a child's hearing, but sense of balance too. That's because our ears also help keep us steady on our feet.

Many kids with asthma have symptoms when they exercise. But with careful management, they usually can do anything their peers can do.

A dislocation happens when two connected bones are separated. These injuries require emergency medical care to avoid further damage.

Some eye injuries can be treated at home, while others require a visit to the doctor or emergency room. Find out what to do if your child has eye pain.

Learn about the different types of head injuries, and find out what to do if your child is seriously injuried.

Here's what to do if you think your child has pulled or torn a muscle, ligament, or tendon.

If your child loses a baby tooth, there's no need to replace it. But if a permanent tooth is dislodged, it's a dental emergency. Here's what to do.

Growing pains are leg pains and soreness that happen to kids at night, usually when they're 3 to 12 years old.

Injuries to growth plates, which produce new bone tissue and determine the final length and shape of bones in adulthood, must be treated so that bones heal properly.

Head injuries can be external or internal. Learn more about both kinds, how to prevent them, and what to do if your child is injured.

Concussions are serious injuries. Here's how to help protect kids and teens from them.

How long does a broken bone take to heal? Find out!

A joint aspiration (arthrocentesis) involves withdrawing (aspirating) a sample of fluid from a joint using a needle and syringe.

Jumper's knee is an overuse injury that happens when frequent jumping, running, and changing direction damages the patellar tendon.

Knee injuries are common among young athletes. Learn about causes, treatments, and prevention.

Little League elbow is an overuse injury to the elbow caused by repetitive throwing. Most cases happen in pitchers, but any young athlete who throws a lot can get the condition.

MCL injuries can happen in active and athletic kids, when excessive pressure is put on the knee joint, resulting in a torn ligament.

A nosebleed can be scary, but it's rarely cause for alarm. Here's how to handle one at home.

Osgood-Schlatter disease (OSD) is one of the most common causes of knee pain in adolescents. It's really not a disease, but an overuse injury.

Panner's disease is a painful bone condition linked to overuse of the elbow. Kids with Panner's disease need to avoid all activities that cause pain so the bone can heal.

Patellofemoral pain syndrome (or runner's knee) is the most common overuse injury among runners, but it can also happen to other athletes who do activities that require a lot of knee bending.

Eye injuries in kids can lead to serious vision problems, even blindness. Wearing protective eyewear can prevent most eye injuries.

Repetitive stress injuries (RSIs) happen when movements are repeated over and over, damaging a bone, tendon, or joint.

Sever's disease, a common heel injury in kids, is due to inflammation (swelling) of the growth plate in the heel. While painful, it's only temporary and has no long-term effects.

Shin splints are pain on the inner part of the shinbone, often from running or another high-impact activity. They get better with rest.

Torticollis is a common condition that causes a stiff neck or neck pain that makes it hard for kids to turn their heads.

Within a few days of a concussion, most students are ready return to school. Here's how parents can help.

After a concussion, athletes often ask how soon they can start playing again. Usually, they can return to sports when all symptoms are gone and a health care provider gives the OK.

Find out what the experts have to say.

When it comes to keeping your kid hydrated, there's a dizzying array of drinks to choose from. Are sports and energy drinks right for your child?

Find out what the experts have to say.

Sometimes the pressure to succeed on the field or in the court can be overwhelming. Learn what you can do to help your child keeps things in perspective.

Organized sports can help kids grow in many ways. Consider your child's age, personality, and abilities to help make sports fun.

One of the most important goals of kids' sports is helping children develop a sense of good sportsmanship. Here's how to set a good example for your kids.

As the COVID-19 pandemic continues, it’s important to know how to protect active kids and young athletes.

Football is a lot of fun, but injuries are common. To keep things as safe as possible on the gridiron, players should follow these tips.

As fun as it is, ice hockey carries a very real risk of injury. To keep your kids as safe as possible, follow these tips.

Ice skating is fun but injuries are a risk. Help your kids follow these safety tips to learn how to skate safely.

Lacrosse is a fast-moving, fun sport to play and watch. But injuries are bound to happen. Here's how to help players avoid them.

Skiing is fun but also has some very real dangers. Make sure your kids follow these safety tips to learn how to stay safe on the slopes.

Snowboarding is a great way to have fun and get exercise, but it has some very real dangers. These safety tips can help keep your family safe on the slopes.

In wrestling, injuries are bound to happen sometimes. To keep things as safe as possible, wrestlers should follow these tips

Milk and other calcium-rich foods help build strong, healthy bones. But most kids and teens don't get enough calcium. Here's how to make sure that yours do.

Sometimes the pressure to succeed on the field or in the court can be overwhelming. Learn what you can do to help your child keeps things in perspective.

All kids need to eat balanced meals and have a healthy diet. But should that balance change for kids who play on a sports team or work out?

Kids who enjoy exercise tend to stay active throughout their lives. Learn how to encourage fitness in your teen.

Kids this age are naturally active, so be sure to provide lots of opportunities for your child to practice basic skills, such as running, kicking, and throwing.

Take advantage of your child's natural tendency to be active. Staying fit can help improve kids' self-esteem and decrease the risk of serious illnesses later in life.

School-age kids need physical activity to build strength, coordination, confidence, and to lay the groundwork for a healthy lifestyle.

Some kids aren't natural athletes and they may say they just don't like sports. What then?

In wrestling, injuries are bound to happen sometimes. To keep things as safe as possible, wrestlers should follow these tips

When it comes to keeping your kid hydrated, there's a dizzying array of drinks to choose from. Are sports and energy drinks right for your child?

Sports supplements are products used to enhance athletic performance. But there aren't enough long-term studies to know if they're safe for teens.

With a properly designed and supervised program, strength training can be a fun way for kids to build healthy muscles, joints, and bones.

This glossary provides definitions for some common sports medicine terms.