By Peqaboo Team

TL;DR. Check the paw first: pads, nails, and between the toes account for a large share of sudden limps. If the paw is clear, look for swelling, heat, or pain response along the leg. A dog that will not put any weight on a leg, cries, or has a dangling limb needs a vet today. For anything milder, record a slow-motion video of your dog walking toward and away from you: it is the single most useful thing you can bring to the consult.
Limping is one of the most common reasons owners search for help at 11pm. The good news: most limps are not emergencies. The important part is knowing which ones are, and how to gather useful information instead of anxiously watching your dog pace around the living room.
Go to a vet today (or an emergency clinic now) if your dog:
Observation at home for 24 to 48 hours is usually reasonable if your dog:
If a mild limp has not improved after 48 hours of rest, book a vet visit anyway. Intermittent limps that come and go for weeks also deserve a proper exam, because that pattern fits early joint disease more than a simple strain.
A side-on view at walking pace is the most revealing angle for spotting gait problems.
Work from the ground up, and stop immediately if your dog shows pain. The goal is information, not treatment.
The majority of sudden limps in otherwise healthy dogs start here.
Run your hands slowly and gently up the leg, comparing left and right.
Have someone walk your dog toward you and away from you at a slow, steady pace on a non-slip surface.
| What you see | Likely candidates | Urgency |
|---|---|---|
| Sudden limp after a walk, paw-licking | Pad cut, foreign object, torn nail | Home check, vet if not found |
| Sudden non-weight-bearing back leg limp in a large dog | Cranial cruciate ligament injury | Vet within a day or two |
| Intermittent skipping on a back leg in a small breed | Luxating patella | Vet appointment, not urgent |
| Stiffness after rest that eases with movement, older dog | Osteoarthritis | Vet appointment for management plan |
| Gradual limp with swelling on the limb, senior large breed | Needs imaging to rule out serious disease | Vet promptly |
| Limping plus fever or multiple sore joints | Tick-borne or immune-mediated disease | Vet promptly |
This table is a starting point, not a diagnosis. Two very different problems can produce the same limp, which is exactly why gait evidence helps so much.
Limping dogs have a talent for walking perfectly at the clinic. Adrenaline masks pain, and the vet sees a normal gait while you insist something is wrong. Video solves this.
If you want more than a raw video, the Peqaboo app's Gait Analysis feature turns a short phone clip into a structured gait report: it tracks joint movement across the video with AI pose estimation and flags asymmetries between legs that are hard to see in real time. Owners typically use it two ways: as a first screen when a limp is subtle enough to doubt, and as a record over time for dogs managing arthritis or recovering from surgery. It is a screening aid, not a diagnosis, but a flagged asymmetry plus your video gives the vet a far better starting point than "he was definitely limping yesterday."
My dog is limping but shows no pain when I touch the leg. Is it serious? Dogs hide pain well, so no reaction does not rule out injury. If the limp persists past 48 hours of rest, or keeps returning, book an exam. Cruciate ligament disease and early arthritis often look exactly like this.
Why is my dog limping only after lying down? Stiffness after rest that warms out of the limp within minutes is a classic osteoarthritis pattern, especially in dogs over seven. It is worth a vet visit: modern arthritis management works best when started early.
Can a limp heal on its own? Simple muscle strains and minor pad injuries often resolve with a few days of lead-only rest. Anything involving joints or ligaments generally does not, and waiting can worsen the outcome.
How much does it cost to diagnose a limp? An exam is usually modest; the cost climbs when X-rays or advanced imaging are needed. Bringing a good gait video (or an AI gait report) can help your vet decide whether imaging is justified before you commit to it.
Next time the limp appears, take out your phone. Film the walk, run it through Gait Analysis in the Peqaboo app, and walk into the clinic with data instead of a description. Your vet will thank you, and your dog will get to the right answer faster. Download Peqaboo to have it ready before you need it.