Warning signs that need a professional

The short answer

See a qualified professional if pain lasts more than a few days, gets worse over a week, changes your stride, wakes you at night, or comes with swelling, numbness or instability. These are not things to run through.

Getting assessed early is usually simpler and cheaper than waiting until you cannot run at all. A physiotherapist or sports doctor can tell the difference between ordinary soreness and something that needs load management.

Signs that are usually ordinary

General muscle soreness 24 to 48 hours after a hard session, mild stiffness that eases as you warm up, and tired legs after a big week are normal parts of training.

The key word is "usually". If normal soreness persists beyond a few days, or you find yourself altering how you run to avoid it, treat it as a warning sign instead.

This page is general education, not medical advice. It cannot diagnose anything.

What to do while you wait

Reduce load rather than stopping completely unless the pain is sharp. Easy walking, cycling or swimming often keeps fitness while the irritated tissue calms down.

Keep a simple note of when it hurts, what makes it better or worse, and how it has changed. That history makes an assessment faster and more accurate.

Reduce

Cut volume and intensity; keep moving if comfortable.

Record

Track pain, triggers and changes over days.

Assess

See a physiotherapist or sports clinician early.

After you are cleared

Return to running gradually, using the same progression principles as any other build: one lever at a time, easy weeks included. A shoe change is not a treatment, but comfortable shoes and a rotation can make the return easier to manage.

If a professional gives you specific guidance, follow it over anything on this site.

How recommendations work