My kid has a sore leg. they did not injure it at all. they're limping a bit. but walking still. what should I do?

What the evidence says

A limp that shows up without any injury is common in kids, and most of the time it turns out to be something mild. But because there is no obvious cause, like a fall or a stubbed toe, it's a good idea to get your child checked by a doctor rather than guessing what's wrong.

One of the most common reasons for this kind of limp is called transient synovitis, temporary swelling in a joint lining, often the hip. This usually shows up a week or two after a cold or other viral illness and gets better on its own within one to two weeks. Sore, tired muscles after a lot of running or jumping can also cause limping without any real injury.

Doctors also watch out for a few things that need faster attention: a fever alongside the limp, a child refusing to put any weight on the leg at all, redness or swelling in a joint, or a limp that has lasted more than a day or two. Any of these are reasons to see a doctor sooner rather than later, since they can point to an infection in the bone or joint, which needs quick treatment.

While you wait for an appointment, plain pain relief like acetaminophen or ibuprofen can help your child feel more comfortable, and it's fine to let them rest the leg. Just don't try to guess the cause yourself. A doctor will ask about recent illnesses, check how your child walks, and may order blood tests or an X-ray if needed to figure out what's going on.

If your child develops a fever, stops walking altogether, seems very unwell, or the limp doesn't improve within a day, get them seen promptly rather than waiting.