Understanding MSK Pain in Children

Whether it is football, gymnastics, dance, rugby, swimming or simply spending hours running around the playground, physcial activity in children should be something that is encouraged.

While regular physical activity is essential for healthy growth and development, it also places increasing demands on their growing bodies.

It is not unusual for children to experience occasional aches and pains. However, understanding the difference between normal soreness and a condition that requires assessment can help parents keep young athletes healthy, active and confident.

Why Do Active Children Experience MSK Pain?

Children are not simply "small adults." Their bodies are constantly developing, with bones, muscles and growth plates all maturing at different rates. During periods of rapid growth, bones often lengthen faster than muscles and tendons can adapt, resulting in increased tension throughout the body. Combined with regular sport and physical activity, this can make children more susceptible to MSK pain.

In many cases, pain develops gradually rather than from a single injury. Repetitive training, changes in activity levels, poor movement patterns, reduced flexibility or inadequate recovery can all contribute.

Common Causes of MSK Pain in Children

Growing Pains:

Despite the name, growing pains are not actually caused by bones growing. They are a common, harmless condition affecting many children between the ages of 3 and 12.

Typical growing pains usually affects both legs and often occurs in calf muscles or behind the knees. Some cases report pain or achiness in the evening or during the night that has dissipated by morning, and does not affect a child's ability to play or participate in sport during the day. Episodes often occur after particularly active days and can usually be eased with gentle massage, warmth, stretching and reassurance.

Growth-Related Sports Injuries:

Children who play regular sport can develop irritation around the growth plates.

Some of the more common conditions include:

• Osgood-Schlatter disease (pain below the kneecap)

• Sever's disease (heel pain)

• Sinding-Larsen-Johansson syndrome (pain at the bottom of the kneecap)

Although these conditions can be uncomfortable, they are usually manageable with the right advice and rarely require complete rest from sport.

Muscle and Tendon Overload:

Rapid increases in training can overload muscles and tendons before they have adapted.

Children may experience muscle tightness, tendon irritation and inflammation or general aches following activity. Early management often prevents these minor problems from becoming longer-term injuries.

Sprains and Acute Injuries:

Awkward landings and collisions are all part of childhood sport. Ankle sprains, wrist injuries, knee ligament sprains and muscle strains are among the most common acute injuries seen in active children.

When Is Pain Not "Just Growing Pains"?

While many childhood aches are completely normal, certain symptoms should always be assessed by a healthcare professional.

Seek advice if your child has:

• Prolonged pain affecting only one leg.

• Swelling, redness, or warmth around a joint.

• Pain that persists during the day.

• Limping or difficulty walking.

• Pain following a significant injury.

• Pain that is getting progressively worse.

• Fever, unexplained weight loss or unusual tiredness alongside the pain.

• Pain that repeatedly stops them enjoying normal activities.

These symptoms may indicate a different condition that requires investigation rather than simple growing pains.

Helping Prevent MSK Pain

Although not every injury can be avoided, a few simple habits can significantly reduce the risk.

Encourage your child to:

• Warm up properly before sport.

• Stay active year-round rather than making sudden increases in activity.

• Build strength alongside sport-specific training.

• Include flexibility exercises where appropriate.

• Wear suitable footwear.

• Get enough sleep to support recovery.

• Take regular rest days each week.

• Speak up early if something hurts rather than pushing through pain.

Listening to the body's warning signs is one of the best ways to prevent minor aches from becoming more significant problems.

MSK pain is a common part of childhood, particularly in active children involved in regular sport. While many aches are harmless and temporary, persistent or unusual pain should never be ignored.

With early assessment and appropriate treatment, most children recover quickly and can continue enjoying the sports and activities they love with confidence.