Why do my muscles get sore 2 days after a workout?

Concerns & risks

You were trying to get fit, but two days after your first workout you can barely walk down stairs.

Pushing through bad pain can cause injury.

Causes & evidence

Delayed onset muscle soreness (DOMS) is common after new or harder exercise.

What to do

1. Do light movement like walking.
2. Stay hydrated.
3. Ease into new exercise.
4. See a doctor for severe pain or dark urine.

Common mistakes: Common mistakes: pushing intensely too soon. Ease into new exercise and build gradually. Gentle movement can help soreness. Severe pain, swelling, or dark urine after intense exercise needs medical attention. Warm-ups, gentle cool-downs and drinking water can help. Light walking or easy movement often feels better than total rest. Progress slowly: add a little more weight, time or distance each week rather than doubling it.

Speed Man tip: Dark urine after a very hard workout can be a warning sign; get checked.

Wrap-up: DOMS is common. Light movement helps. Severe pain needs care.

Want the why behind it? Read Dehydration in the wiki.