Why does my dog limp after a walk but seem fine otherwise?

Because a paw related limp is common and usually minor, checking there first, spreading the toes and feeling each pad for anything embedded, tender, or cut, often finds the answer within a minute or two, well before considering anything involving joints or muscles.

Walking on an uneven surface or stepping on a sharp stone can bruise a pad slightly, causing a limp that shows up right after the walk but often eases within a day of rest, especially if nothing visible is found on inspection and your dog otherwise seems completely normal, eating and playing as usual.

A limp that persists beyond 24 to 48 hours, gets worse rather than better, or returns consistently after every walk despite a clean paw check points to something beyond a simple bruise and is worth a vet visit to rule out a sprain, joint issue, or something not visible from the outside.

A limp that appears partway through a walk rather than only afterward, or one that seems to worsen with continued activity rather than staying steady, points more toward a joint or muscle issue than a simple paw bruise, which is a useful distinction to describe if you do end up discussing it with a vet.

Noting roughly which leg your dog is favoring and whether the limp changes with different surfaces, worse on hard ground versus soft grass for example, gives useful detail that helps narrow down the likely cause if the limp does not resolve on its own.