If a football-playing kid between about 8 and 14 has heel pain — during training, after it, or first thing in the morning — the most common cause has a scary name and a mostly unscary story: Sever’s disease (calcaneal apophysitis). It isn’t a disease. It’s an irritation of the growth plate at the back of the heel, where a strong, often-tight calf pulls on a bone that is still growing.

Three things usually combine: tight calves, lots of running and jumping, and a skeleton that’s mid-construction. Football supplies all three, which is why this shows up so often around growth spurts.

What to look for: pain at the back or underside of the heel, worse with activity; tenderness when you squeeze the sides of the heel; limping or tiptoe-walking after training; morning heel stiffness.

What to do — and it’s usually not “stop football”:

  • Ease off first. Cut the running and jumping load for a week or two — not to zero, just down. Pain is the diagnosis here; playing through it makes the recovery longer.
  • Loosen what’s pulling. Gentle calf stretching, done separately for the two calf muscles — straight-knee and bent-knee versions. The morning stretches routine holds both, with the form notes.
  • Build tolerance back. Slow calf drops off a step, a few times a week, teach the tendon and its attachment to take load. They’re in the prevention routine.
  • Check the boots. A firm heel cup helps; worn-flat boots and hard surfaces don’t.

When to get it checked: if the pain is sharp rather than achy, follows an actual injury, wakes them at night, comes with swelling, or hasn’t eased after a couple of weeks of reduced load — see a physio or doctor. This page is general information, not a diagnosis.

The honest reassurance: Sever’s resolves — it ends when the growth plate closes, and it almost never leaves anything behind. The job is to manage the season around it, not to fear it. Caught early it costs a day; pushed through, it costs weeks.

The routines that do the work: heel & knee care — the strength side, three times a week — and the daily prevention stretches alongside it.