When should I worry about my child’s leg pain?

Arrange a prompt assessment if your child has fever, feels unwell, has pain after a major fall, develops an ongoing limp, refuses to weight-bear, has visible swelling or redness, or has night pain that persists or worsens.

Kids Leg Pain

Article by John Miller & Erin Runge

Kids leg pain physiotherapy assessment of child knee injury

Kids leg pain can come from growth plates, overuse, or a recent knock during sport. Often, symptoms settle with the right plan. However, some patterns need a faster check, especially if your child limps, has swelling, or pain keeps waking them at night. For a broader youth sport overview, start with our Kids Sports Injuries hub.

Sometimes symptoms spread from one area into another, so it helps to consider the wider picture of leg pain, including muscle overload, tendon irritation, or joint strain. In growing athletes, the same training load can irritate different tissues than it would in an adult.

Many youth injuries differ from adult injuries because bones, tendons, and growth plates change quickly during growth spurts. If you suspect recent overload, see muscle strain and tendinopathy for useful background. If pain also involves the spine or posture, see kids back pain.

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What Is Kids Leg Pain?

Kids leg pain is a broad term covering pain in a child’s hip, thigh, knee, shin, calf, ankle, or heel. It may relate to growth, sport overload, tendon or muscle strain, joint irritation, or bone stress. Some causes are mild and short-lived, while others need early assessment to protect a growing body.

Pain can come from the hip, knee, shin, ankle, or heel.
Growth spurts can increase load on muscles, tendons, and growth plates.
Running and jumping sports often trigger symptoms.
A limp, swelling, or persistent night pain needs a quicker check.
Some hip problems can be felt in the thigh or knee.

Why Kids Leg Pain Can Feel Different

Children’s bones keep growing, and the growth plate area can become sore with repeated running and jumping. Also, muscles often tighten during growth spurts, which can increase traction on tendons and bony attachment points. Therefore, the same sport may trigger a different injury pattern in a child compared with an adult.

This is why kids leg pain often needs age-specific assessment. A physiotherapist will usually consider the child’s age, recent growth, sport volume, footwear, recovery, and the exact spot where symptoms occur.

When Should You Worry About Kids Leg Pain?

You should organise a quicker assessment if your child’s pain does not fit the usual pattern of short-lived post-sport soreness. Red flags include symptoms that keep worsening, stop normal walking, or suggest more than simple overload.

fever, feeling unwell, or unexplained weight loss
pain after a major fall, awkward landing, or collision
an ongoing limp or refusal to weight-bear
visible swelling, redness, or heat
night pain that persists or keeps worsening
pain localised to the hip or groin with reduced movement

If these signs are present, assessment matters. The Royal Children’s Hospital provides a helpful overview of physeal (growth plate) injuries and why early diagnosis is important.

Common Causes of Kids Leg Pain

Osgood-Schlatter disease

Osgood-Schlatter disease often causes a sore bump at the top of the shin just below the kneecap. It tends to flare with running, kicking, and jumping. Many children improve with smarter training loads, flexibility work, and a graded strengthening plan. See our guide to Osgood-Schlatter disease.

Sinding Larsen Johansson syndrome

This condition usually causes pain at the lower edge of the kneecap. It also links to growth and repeated jumping or sprinting. A physiotherapist may guide activity changes and progressive loading. Learn more about Sinding Larsen Johansson syndrome.

Anterior knee pain

Children can develop front-of-knee pain from strength, control, and training-load issues. It can look like growing pains, yet it usually behaves differently because it worsens with stairs, squats, running, or sport. Useful starting points include patellofemoral pain, chondromalacia patella, and patellar tendinopathy.

Heel and lower-leg overload

Heel and shin symptoms are common in active children. Sever’s disease often causes heel pain during running and jumping, while shin splints can cause exercise-related shin soreness. An ankle sprain may also cause pain that spreads into the lower leg, especially when swelling and bruising track down the foot.

Muscle and tendon overload

Some cases of kids leg pain come from soft tissue overload rather than a growth plate problem. This can include calf, thigh, or hamstring soreness after sport, especially when training volume increases quickly. Helpful background pages include calf strain, thigh strain, and hamstring strain.

Growth plate fractures and avulsion injuries

Falls, tackles, and awkward landings can irritate or fracture growth plates. Some injuries also involve a small piece of bone being pulled away where a tendon attaches. These problems need the right diagnosis early. Our youth sports page on avulsion fracture explains the basics.

Hip conditions that refer pain into the leg

Sometimes the true source of symptoms sits higher than the child points to. For example, hip problems such as Perthes disease or SCFE can present as thigh or knee pain, especially when limping is present. That is one reason a full lower-limb assessment matters.

Are Growing Pains the Same as Kids Leg Pain?

No. Growing pains are only one possible cause of kids leg pain. They often feel like an ache in the calves, thighs, or behind the knees later in the day or overnight, and they usually settle by morning. They should not cause swelling, heat, redness, or a lasting limp. If your child’s symptoms do not match that pattern, review growing pains and arrange an assessment if needed.

How Is Kids Leg Pain Treated?

Treatment depends on the likely tissue involved, the child’s age, and the sport demands. Some children improve with short-term load reduction, footwear advice, and a graded return to running and jumping. Others need more targeted rehabilitation, especially when weakness, stiffness, poor landing control, or repeated flare-ups are part of the picture.

Physiotherapy for kids leg pain often includes identifying the irritated structure, adjusting training loads, improving flexibility where needed, and building age-appropriate strength and control. A graded plan helps the child stay active while reducing overload on growing bones, tendons, and joints.

Common Questions Parents Ask

How do I know if it is just growing pains?

Growing pains usually come and go, settle by morning, and do not cause swelling or limping. In contrast, injuries often flare with sport, persist into the next day, or localise to one clear spot.

What can I do tonight for kids leg pain?

First, reduce loading for 24–48 hours. Next, use simple comfort measures such as gentle range of motion, light stretching without forcing it, and supportive footwear. Then, arrange an assessment if the pain returns quickly, worsens, or changes your child’s walking.

Should my child stop sport completely?

Complete rest is not always necessary. Instead, many children do better with short-term load reduction and a graded plan back to running, jumping, and training volume.

Does my child need scans?

Not always. A physiotherapist can screen for red flags and decide whether imaging may help, especially after significant trauma, persistent night pain, swelling, or an ongoing limp.

Can hip problems cause knee pain in children?

Yes. Some hip conditions, including Perthes disease and SCFE, can present as thigh or knee pain. If your child limps or has reduced hip movement, assessment should not be delayed.

What to Do Next

If your child has leg pain that keeps returning, limits sport, or changes how they walk, organise an assessment. A physiotherapist can identify the likely driver, guide safe training changes, and build a plan that suits your child’s sport and school routine.

Early review is particularly important if symptoms involve a limp, persistent swelling, night pain, or hip and groin stiffness. The earlier the cause is identified, the easier it is to guide safe recovery and return to sport.

Muscle & Soft Tissue Products

These muscle and soft tissue products are commonly used by our physiotherapists to relax or loosen muscles, improve strength, comfort, flexibility, and home exercise programs.