Growing Pain in One Leg: What to Know

The term growing pains usually describes intermittent aches in the muscles of both legs, with a child well between episodes. Pain confined to one leg may follow a fall, a change in training, tight muscles, or irritation around a joint. Pain below the knee after running or jumping can be associated with Osgood-Schlatter Disease; heel pain in a physically active child can be associated with Sever's Disease. The location and triggers help a clinician separate these patterns.

Write down the exact side and spot, when the pain appears, and whether it improves with rest. Reduce jumping, sprinting, and other movements that reproduce symptoms until the cause is clearer. Comfortable walking, gentle movement, warmth for an evening ache, and well-fitting shoes may be reasonable if there is no injury sign. Do not use a painful leg as a test by repeatedly provoking the symptom.

Arrange an appointment if the pain lasts, repeatedly returns on the same side, causes limping, is present on waking, or comes with tenderness over one precise area. Get urgent help for a major injury, inability to walk, visible deformity, fever with swelling, rapidly increasing pain, or a foot that is cold, pale, blue, or numb.

Could the pain be coming from the bone, muscle, tendon, or joint? Is an activity break enough, or is guided rehabilitation needed? What symptoms should be monitored before returning to running or sport?