Tendonitis, Shin Splints, and Other Common Leg Injuries in Kids – A Guide for Parents

A doctor examines a child's foot, focusing on the ankle

Children involved in sports and physical activity are at a higher risk of leg injuries due to the demands of athletic performance.

High levels of running, jumping, and sudden changes in direction place significant stress on muscles, tendons, and ligaments.

Recognizing and preventing these injuries plays a crucial role in supporting healthy athletic development and avoiding long-term complications.

Encouraging proper conditioning and promoting balanced training routines can reduce injury rates and keep young athletes active and healthy.

Tendonitis in Kids

Tendonitis in children refers to inflammation of the tendons, which are the fibrous tissues that connect muscles to bones. Overuse, poor training techniques, and inadequate conditioning often trigger this condition.

When tendons are exposed to repetitive stress without sufficient recovery time, they become irritated and inflamed. Of course, this directly requires the usage of a pediatric bed for kids to help with the issue.

Young athletes involved in sports that require repeated running, jumping, and rapid changes in direction are more prone to tendonitis.

Without proper management, the condition can worsen, leading to long-term mobility issues and decreased athletic performance.

Common Types in Kids

Different types of tendonitis frequently affect young athletes. Two of the most common include:

  • Achilles Tendonitis – Affects the Achilles tendon at the back of the ankle.
  • Patellar Tendonitis – Also known as “jumper’s knee,” this condition involves inflammation of the patellar tendon, which connects the kneecap to the shinbone.

Causes

Kid laying injured on a basketball court
Source: YouTube/Screenshot, Poor warm-up is very dangerous, both for kids and the adults

Tendonitis in kids often develops due to a combination of physical stress and improper training techniques. Key causes include:

  • Overuse – Repetitive running, jumping, and sudden changes in direction place continuous stress on the tendons, leading to inflammation.
  • Poor Warm-Up Routines – Skipping proper warm-ups reduces blood flow to the muscles and tendons, increasing the risk of injury.
  • Inadequate Stretching – Tight muscles place additional strain on the tendons, making them more prone to inflammation.
  • Muscle Imbalances – Weak or unevenly developed muscles force tendons to compensate, increasing strain and causing inflammation over time.
  • Improper Technique – Incorrect body mechanics during running, jumping, or landing place extra pressure on the tendons, leading to irritation and inflammation.

Symptoms

Tendonitis often presents with a range of symptoms that gradually increase in severity as the condition progresses. Parents and coaches should watch for the following signs:

  • Pain and Stiffness – Discomfort and stiffness in the affected area, especially after physical activity or in the morning.
  • Swelling and Tenderness – The tendon and surrounding area may appear swollen and feel sensitive to the touch.
  • Increased Pain with Activity – Pain tends to worsen during activity, particularly during running, jumping, or climbing stairs.
  • Reduced Range of Motion – Inflammation can limit the tendon’s ability to stretch, causing stiffness and restricted movement.

Diagnosis and Treatment

Gentle hands examine a child's ankle, assessing for injury
Source: YouTube/Screenshot, Tendonitis can be examined physically

Healthcare professionals typically diagnose tendonitis through a physical examination. In some cases, imaging tests such as ultrasound or MRI may be required to assess the severity of the inflammation and rule out other injuries.

Treatment focuses on reducing inflammation and promoting healing through a combination of rest and targeted therapy. Recommended treatments include:

  • RICE Method – Rest, ice, compression, and elevation reduce swelling and relieve pain. Applying ice for 15–20 minutes every 3–4 hours during the initial injury phase helps minimize inflammation.
  • Physical Therapy – Exercises aimed at strengthening the muscles surrounding the affected tendon improve stability and reduce stress on the tendon.
  • Stretching and Flexibility Exercises – Gentle stretching of the affected muscles and tendons improves range of motion and reduces stiffness.
  • Supportive Bracing – Wearing braces or supportive wraps reduces stress on the tendon during activity and provides additional stability.
  • Pain Management – Over-the-counter anti-inflammatory medications such as ibuprofen may help manage pain and inflammation.

Prevention

Boy doing muscle strengthening exercise
Source: YouTube/Screenshot, Strengthening exercises are very useful in injury prevention

Preventing tendonitis in young athletes requires a proactive approach involving proper training, balanced activity, and attention to early signs of stress. Key prevention strategies include:

  • Gradual Increase in Activity Levels – Increasing training intensity gradually allows the tendons to adapt and strengthens the supporting muscles without placing excessive stress on the tissues.
  • Strengthening Exercises – Exercises targeting the leg muscles, particularly the quadriceps, calves, and hamstrings, improve joint stability and reduce the load on the tendons.
  • Proper Warm-Ups and Cool-Downs – Dynamic stretching before activity increases blood flow and prepares the muscles and tendons for exercise. Cool-downs, including light jogging and static stretching, help flush out lactic acid and prevent stiffness.
  • Cross-Training – Encouraging kids to participate in different sports reduces repetitive stress on specific tendons and promotes balanced muscle development.
  • Monitoring Equipment and Surfaces – Ensuring kids wear proper footwear with adequate arch support and cushioning reduces impact on the joints. Avoiding training on hard or uneven surfaces minimizes strain on the tendons.
  • Encouraging Communication – Teaching kids to recognize early signs of pain and discomfort ensures that issues are addressed before they develop into more severe injuries.

Tendonitis in children remains a common but manageable condition with the right preventative measures and proper treatment.

Encouraging balanced training, strengthening exercises, and attention to proper technique reduces the risk of developing tendonitis and supports long-term athletic health.

Other Common Leg Injuries in Kids

Physical therapy session in a well-equipped gym, focusing on a child's agility and balance
Source: YouTube/Screenshot, Leg injuries in kids are actually quite common

Sports and physical activity expose young athletes to a wide range of leg injuries.

Running, jumping, quick stops, and sudden direction changes place stress on the muscles, tendons, ligaments, and bones.

Without proper conditioning and recovery, the chances of injury increase significantly

Stress Fractures

Stress fractures are small cracks in the bones that develop due to repetitive stress rather than direct trauma. Over time, repeated impact from running, jumping, or high-intensity training causes tiny breaks in the bone that worsen without proper rest.

Young athletes involved in high-impact sports like basketball, track and field, and gymnastics face a higher risk of developing stress fractures.

Poor nutrition and inadequate bone density may increase susceptibility.

Symptoms:

  • Localized pain that worsens with activity and eases with rest
  • Tenderness at the site of the fracture
  • Swelling and possible bruising

Diagnosis:

  • MRI or bone scans detect small fractures not visible on standard X-rays
  • Physical examination to pinpoint the affected area

Treatment:

  • Rest and reduced activity allow the bone to heal
  • Immobilization with a boot or brace to prevent further damage
  • Physical therapy to strengthen the surrounding muscles and restore range of motion after healing
  • Gradual reintroduction to activity under medical supervision

Ankle Sprains

 

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Ankle sprains happen when ligaments surrounding the ankle stretch or tear due to sudden twisting or rolling of the foot.

This type of injury is common in sports involving quick turns, jumping, and contact, such as:

  • Soccer
  • Basketball
  • Football

Severity ranges from mild stretching of the ligament to complete tearing, which affects weight-bearing ability and ankle stability.

Symptoms:

  • Swelling and bruising around the ankle
  • Pain when putting weight on the affected foot
  • Instability or weakness in the ankle

Diagnosis:

  • Physical examination to assess ligament damage
  • X-ray to rule out fractures if the pain is severe

Treatment:

  • RICE method (Rest, Ice, Compression, Elevation) to reduce swelling and inflammation
  • Anti-inflammatory medication to control pain and swelling
  • Strength and balance exercises to restore stability
  • Gradual reintroduction to sports to prevent re-injury

Sever’s Disease (Heel Pain)

Professional examines child's injured heel
Source: YouTube/Screenshot, Kids who grow faster may experience heel pain

Sever’s disease affects the growth plate in the heel, commonly seen in kids aged 8 to 14 during growth spurts.

Increased physical activity and tight calf muscles create excessive strain on the heel’s growth plate, leading to inflammation and pain.

High-impact sports like soccer, basketball, and gymnastics increase the risk. Boys tend to experience it more frequently due to faster growth patterns.

Symptoms:

  • Heel pain that intensifies during or after physical activity
  • Tenderness at the back of the heel
  • Stiffness and discomfort when walking or running

Treatment:

  • Rest and reduced physical activity until symptoms improve
  • Ice application to control inflammation
  • Heel cups or orthotics to reduce heel pressure
  • Stretching exercises targeting the calf and Achilles tendon to relieve tension

ACL and Meniscus Injuries

Teammates surround a player with a painful knee injury
Source: YouTube/Screenshot, ACL is very common and serious injury

Tears to the anterior cruciate ligament (ACL) or meniscus are common in sports involving quick changes in direction, sudden stops, or jumping.

Basketball, soccer, and gymnastics place significant stress on the knee joint, making it vulnerable to injury.

ACL tears often involve a popping sensation followed by swelling and instability, while meniscus tears cause pain and stiffness during movement.

Symptoms:

  • Swelling and pain in the knee joint
  • Instability or “giving way” sensation
  • Reduced range of motion
  • Pain when twisting or pivoting the leg

Diagnosis:

  • Physical examination to assess joint stability
  • MRI to confirm ligament or cartilage damage

Treatment:

  • Rest and reduced activity to allow healing
  • Physical therapy to strengthen the quadriceps, hamstrings, and supporting muscles
  • Knee braces to provide stability during recovery
  • Surgical intervention in severe cases, followed by rehabilitation to restore function

Leg injuries among young athletes are often preventable with proper training, conditioning, and recovery.

Monitoring early symptoms and providing appropriate care ensures a faster return to activity and reduces the risk of recurring injuries.

The Bottom Line

Addressing leg injuries early and promoting proper training methods helps young athletes stay healthy and active.

Encouraging balanced participation in sports, proper conditioning, and monitoring for signs of injury will support long-term athletic development.

Parents play a critical role in fostering healthy habits and helping children avoid injuries.

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