Sever’s disease is an inflammation of the growth plate in the heel, and it’s the most common cause of heel pain in children and young athletes between ages 8 and 15. Despite the name, it’s not really a “disease” at all. It’s a temporary overuse injury that resolves completely once the growth plate matures and closes. It causes no permanent damage to the heel bone.
What Happens Inside the Heel
The back of the heel bone has a growth plate that serves as the attachment point for the Achilles tendon, which connects the calf muscles to the foot. During growth spurts in early adolescence, bones grow faster than the muscles and tendons around them. The calf muscle and Achilles tendon can’t stretch enough to keep up, so they pull harder on that still-developing growth plate. This increased tension irritates and inflames the area.
Activities that involve running, jumping, and quick direction changes make things worse because they increase the force on the bottom of the foot. Running is the activity most commonly linked to Sever’s disease. It creates muscular imbalances where the calf muscles and the muscles that straighten the knee become disproportionately strong compared to the muscles that flex the knee and pull the toes upward. Those imbalances put even more strain on the heel bone during activity.
Who Gets It
Sever’s disease primarily affects kids between 8 and 15 whose skeletons are still maturing. It’s especially common in young athletes who play high-impact sports like soccer, basketball, gymnastics, and track. Children going through a growth spurt are at the highest risk because that’s when the mismatch between bone growth and muscle flexibility is most pronounced. It can affect one or both heels.
What It Feels Like
The hallmark symptom is pain at the back or bottom of the heel that gets worse during and after physical activity. Kids often limp after practice or games, and some walk on their toes to avoid putting pressure on the heel. The pain typically eases with rest but comes back once activity resumes. Mornings can be stiff and uncomfortable, especially after a day of heavy exercise.
There’s no swelling you can see, and the heel looks normal from the outside. But squeezing both sides of the heel at the same time usually reproduces the pain. This “squeeze test” is one of the most reliable ways clinicians identify the condition, with 97% sensitivity in one study. Another reliable indicator is pain when the child stands on one leg on the affected heel, which picked up 100% of cases in the same study. Importantly, the diagnosis is based on these physical tests and the child’s history, not on X-rays or imaging. Growth plate irregularities on X-ray are common even in kids without any pain.
How It’s Treated
Sever’s disease responds well to conservative treatment. The most effective first-line approach combines custom foot orthotics with physical therapy focused on two things: stretching the calf muscles and Achilles tendon, and strengthening the muscles that pull the foot upward (dorsiflexion). Custom orthotics have been shown to reduce pain by nearly 69% and increase the heel’s pressure tolerance by over 53% within 12 weeks. When paired with these exercises, most kids return to sport within about two months.
Ice after activity and over-the-counter anti-inflammatory pain relievers help manage flare-ups. These are considered part of the core treatment plan for controlling acute pain and inflammation.
If the first-line approach isn’t enough, additional options include heel lifts, heel cups, kinesio taping, and supportive footwear. Heel lifts work by reducing how much the Achilles tendon has to stretch, which takes pressure off the growth plate. However, generic off-the-shelf insoles don’t perform nearly as well as custom orthotics in studies, so they’re generally not recommended as a standalone treatment.
Recovery Timeline
Most kids become pain-free within a few weeks to several months. A study tracking young soccer players over 10 years found the average return-to-play time was about 61 days, though this varied widely. Over three-quarters of cases took longer than four weeks to resolve, and some stretched well beyond that. Children are typically cleared for competition once they’re pain-free and their affected heel functions normally compared to the other side.
Flare-ups can recur during the growing years, especially at the start of a new sports season or during another growth spurt. This doesn’t mean anything has gone wrong. It simply reflects the ongoing tension between growing bones and the soft tissues attached to them.
Long-Term Outlook
Sever’s disease does not cause permanent damage to the heel bone or the growth plate. Once the growth plate fully closes and hardens into solid bone, typically by age 15 or 16, the condition resolves entirely. Most children make a full recovery and return to all their usual activities without any lasting problems. The condition is painful and frustrating in the short term, but it’s a self-limiting part of growing up for many active kids.