Quick answer: if you can hear your dog's back nails scraping on the pavement, or the tips of the back nails are worn flat on top, your dog isn't lifting those feet properly. Sometimes that's because sore hips, knees or a sore back make them shorten their stride. But scuffing is also a classic early sign of a spinal cord or nerve problem, such as a slipped disc (IVDD) or degenerative myelopathy, where the dog can't feel exactly where its feet are. The two can look alike, so a scuffing dog needs a vet examination, and scuffing that is new, one-sided or getting worse should be checked promptly.
Transparency note: this page is written by MedPaw, which makes a joint supplement. It is general information, not a diagnosis. Checked 9 October 2026.
How to spot scuffing
- A scraping or clicking sound from the back feet on hard ground
- Back nails worn short, flat or angled on the top or front edge, often more on one foot
- Worn fur, sores or bleeding on the top of the back toes
- Tripping on kerbs or steps, or catching the toes on rugs
- Scuffing that gets worse towards the end of a walk
Scuffing sits on a spectrum with knuckling (standing or walking on the top of the paw), crossing the back legs and dragging the back legs. Those are usually more advanced signs. Scuffing is often the first thing owners notice, which is why it's worth acting on.
Likely causes
Why a dog might scuff its back paws
| Cause | What you might notice | What to do |
|---|---|---|
| Slipped disc or other spinal problem (IVDD) | Back pain, hunched posture, wobbliness, weak legs, scuffing; can come on suddenly | Call your vet the same day; keep your dog quiet |
| Degenerative myelopathy | Older dog, slowly worsening scuffing and wobbliness, often not painful | Vet check, including a neurological examination |
| Other nerve or spinal cord problems | Knuckling, crossing legs, weakness, sometimes on one side only | Vet check promptly; same day if sudden |
| Arthritis or joint pain | Short, stiff stride, slower on walks, stiff after rest | Vet check; pain relief if needed |
| Muscle weakness | Thin back legs, tiring on walks, scuffing worse when tired | Vet check, then gentle strength work |
For guidance only, not a diagnosis.
Neurological causes: why a vet is essential
PDSA lists "dragging or scuffing feet" among the signs of IVDD (slipped disc), alongside back pain, wobbliness and weak legs, and warns it "can get a lot worse if it's left untreated". For degenerative myelopathy (DM), PDSA lists "scuffing the back feet while walking" as a sign, with weak, wobbly back legs that become gradually more paralysed over time. DM is inherited, most often seen in German Shepherds, Boxers, Corgis and Bernese Mountain Dogs, usually starts around nine years old, and isn't painful.
Because a dog with a nerve problem may not seem uncomfortable at all, it's easy to assume scuffing is "just age". Vets check how well a dog knows where its feet are as part of a neurological examination, and may suggest further tests or a referral. Don't try to diagnose this at home. Our guides to degenerative myelopathy and nerve damage in dogs' legs explain more.
Joint and muscle causes
Dogs with sore hips, knees or backs often take shorter, flatter steps and don't lift their feet as high, especially when tired. Dragging the feet is one of the questions vets use to screen for chronic pain. Weak back leg muscles add to it. These causes are usually more manageable, but you only know it's joints and not nerves once a vet has examined your dog.
Red flags: when to see a vet
Book a vet appointment for any scuffing. Call the same day, or your emergency vet out of hours, if your dog:
- started scuffing suddenly, especially after exercise, a fall or rough play
- is in pain, has a hunched back or yelps when picked up
- is knuckling over, crossing their back legs, wobbling or falling
- is getting worse over hours or days
- can't stand, can't use their back legs, or has lost bladder or bowel control (this is an emergency)
What you can do at home
- Film your dog walking on a hard surface, from behind and from the side, and photograph the worn nails. It helps your vet see what happens on walks.
- Protect the toes. PDSA suggests protective boots if the feet become sore, making sure they aren't too tight. See our guide to dog boots and paw grips.
- Choose softer routes. Grass and smooth paths are kinder on scuffed toes than rough tarmac or gravel.
- Make floors grippy with rugs and runners, so your dog doesn't slip. See non-slip flooring.
- Keep walks short and frequent, and stop before your dog tires, as scuffing often gets worse with fatigue.
- Check the toes after walks for broken nails or sores. See our toe and nail first aid guide.
Physiotherapy and controlled exercise help many of these dogs, whatever the cause, but the right plan depends on the diagnosis. Once your vet is happy, our guide to exercises to strengthen the back legs is a good starting point.
Can a supplement help?
Honestly: if your dog's scuffing is caused by a spinal cord or nerve problem, a joint supplement won't fix it, and it must never delay a vet visit. If your vet finds the cause is stiff, arthritic joints and weak muscles, a joint supplement can support joint health alongside their plan. Among joint supplements, the strongest evidence is for omega-3s, according to a 2022 review of 72 trials; glucosamine and chondroitin did not relieve pain in that review.
Where your vet confirms joint stiffness, we'd suggest MedPaw Hip & Joint Chews: a soft chew given like a treat, with all six key joint actives including green-lipped mussel, a source of omega-3s, and a 60-day money-back guarantee. It contains mollusc and gluten, it isn't a medicine, and you should check with your vet if your dog has a condition or takes medication. See the best supplement for a dog losing muscle and the best joint supplements for senior dogs.
Frequently asked questions
Is my dog scuffing their back paws always serious?
Not always, but it always needs a vet check. It can be caused by tiredness or joint stiffness, but it's also an early sign of spinal and nerve conditions, and those are best caught early.
What's the difference between scuffing and knuckling?
Scuffing is when the toes or nails brush along the ground as the foot swings forward. Knuckling is when the dog stands or walks on the top of the paw instead of the pads. Knuckling is a stronger sign of a nerve problem, but both should be checked by a vet.
Do worn back nails mean my dog has degenerative myelopathy?
No, not on their own. Worn nails just show your dog isn't lifting those feet fully. That can be due to joint pain, weakness, a disc problem or DM, among other things. Only a vet can work out which.
Can arthritis make a dog drag their back feet?
Yes. Dogs with sore joints often take shorter, lower steps, especially when tired, which can make the feet scuff. Your vet will want to rule out nerve causes before putting it down to arthritis.
Should my dog wear boots if they scuff?
Boots can protect sore or worn toes, especially on rough ground. Choose ones that fit well and aren't too tight, introduce them gradually, and take them off after walks to check the skin.
Can a supplement stop my dog scuffing their paws?
Not if the cause is neurological. If your vet confirms stiff joints are behind it, a joint supplement such as MedPaw can support joint health alongside their treatment, exercise and weight plan.
