Stress Fracture (Overuse)

Description

A stress fracture is a tiny crack in a bone caused by repeated overload rather than a single injury. It shows up in active children and adolescents, often after a jump in training or a switch to a harder surface or schedule.

How it happens (the mechanism)

Bone is living tissue that is constantly remodeling — breaking down a little and rebuilding a little, all the time. Normally rebuilding keeps pace. But when the load goes up faster than the bone can rebuild — more miles, more jumps, a harder surface, less rest — microscopic damage accumulates faster than it is repaired, and a fine stress crack forms. It is fundamentally a problem of supply and demand on the bone.

Because the rebuilding side of that balance depends on overall bone health, persistent or repeated stress fractures are a cue to look at the bigger picture — training load and rest, footwear and surfaces, and whether a child is taking in enough overall nutrition and energy to support their bones and activity.

Symptoms

Activity-related pain that comes on gradually, is worse with the offending activity and better with rest, and is often tender at one specific spot. Over time the pain can start earlier in activity or linger afterward.

Doctor examination and imaging

The doctor pinpoints the tender spot and reviews the training history. Early stress fractures can be invisible on X-ray, so an MRI is sometimes used to confirm one when the exam is suggestive but the X-ray is normal.

Treatment

The core of treatment is rest from the offending activity to let the bone catch up and heal, sometimes with a boot or protected weight-bearing, followed by a gradual, paced return. Adjusting training, footwear, and surfaces — and supporting overall nutrition and bone health — helps prevent the next one.

Recovery and long-term outlook

Most stress fractures heal well with rest and a sensible return to activity. A small number in higher-risk locations need closer attention, which your doctor will guide.

When to call the doctor

Call if pain persists or worsens despite rest, if it begins to hurt at rest or at night, or if the area becomes swollen, red, or warm — and if pain is not improving with the plan, it is worth re-checking.

Learn more

OrthoInfo (AAOS) — Stress Fractures: orthoinfo.aaos.org

This information is for educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. For specific concerns about your child, consult a board-certified, fellowship-trained pediatric orthopaedic surgeon.