My dog has a swollen paw
A swollen paw is worth getting seen the same day rather than waiting to see if it settles on its own. Common causes range from a simple sting or thorn to an infection or a sprain, and while most are not life-threatening, telling them apart properly needs a vet's examination rather than a guess at home.
Get this seen
This is worth a call to your vet rather than waiting to see how it goes, particularly if it has lasted more than a day or your pet is otherwise off-colour.
What commonly causes it
An insect sting or bite is one of the more common causes and can come up quickly, sometimes within minutes of your dog yelping or pulling their paw away from something in the grass. A thorn, splinter or other foreign body working its way into the pad or between the toes is another frequent cause, and it is not always visible without a close look.
A sprain or strain from overexertion, an awkward landing, or a knock can cause swelling around a joint rather than the paw as a whole, and a torn nail or cut pad can lead to swelling from the injury itself or from infection setting in afterwards. An interdigital cyst — a swollen, often painful lump between the toes — is a further possibility, particularly in certain breeds.
Signs that mean today, not tomorrow
See a vet the same day if your dog cannot put weight on the paw at all, if the swelling is spreading rather than staying in one place, if the paw is hot, very red, or has an open wound or discharge, or if your dog seems generally unwell, feverish or lethargic alongside the swelling.
A visible foreign object still embedded in the paw, a snake bite, or swelling that has come on very suddenly and dramatically all warrant the same urgency. Do not try to dig out something embedded yourself — that risks pushing it deeper or causing more damage than leaving it for a vet to remove properly.
What to do while you get them seen
Keep your dog as still and calm as you reasonably can, and avoid letting them walk on the paw more than necessary to get them to the car or into the practice. If there is an obvious surface wound, you can gently clean around it with plain water, but avoid applying any creams, powders or home remedies before a vet has had a proper look.
If you can see what caused it — a visible sting site, a thorn you can see but not safely remove, or a specific insect — mention it when you call, since it helps the vet know what they are dealing with before your dog arrives.
Less sudden causes worth knowing about
Not every swollen paw appears in minutes. Some develop more gradually, over a day or two, and are more likely to point to a low-grade infection working its way in through a small cut, a splinter that went unnoticed, or an allergic skin reaction that has been building. A dog who has been licking or chewing at one paw more than usual in the days before the swelling appeared is giving you a useful clue about where to start looking.
Persistent licking at a single paw can also become a problem in its own right, sometimes creating a firm, swollen area called a lick granuloma where repeated licking has irritated the skin enough to cause a genuine lesion. This tends to build up over a longer period than an insect sting or a fresh injury, and it needs a vet's input to work out what started the licking in the first place, since treating the paw alone rarely stops the underlying cause.
After the vet visit
Whatever the cause turns out to be, follow the after-care your vet gives you closely, including any instructions about rest, an Elizabethan collar to stop your dog interfering with the area, or a course of medication started to bring down swelling or clear an infection. Cutting a course of treatment short because the paw looks better after a couple of days is one of the more common reasons a swelling comes straight back.
Keep half an eye on the paw over the following week even once your dog seems back to normal, since some causes — particularly an infection that has been only partly resolved, or a foreign body that was not fully found — can flare up again. A quick check-back call to your vet is a much smaller step than waiting for a second, more serious episode.
What can help
Things we stock that owners commonly use alongside a vet’s advice — not a substitute for it.
Leucillin Antiseptic Skincare Spray for Cats & Dogs
A versatile, alcohol-free antiseptic spray that cleans, soothes, and helps protect your pet's skin from bacteria, viruses, and fungi.
From£16.49
Absorbent Cotton Gauze Swabs for Pets – Pack of 100
Highly absorbent, low-lint cotton gauze swabs produced in clean conditions — a practical first-aid essential available in three size and ply combinations.
From£4.49
MPS Medical PetS Boot – Waterproof Paw Protector
A vet-recommended waterproof boot that keeps bandages, dressings, and casts dry during walks and wet weather.
£30.49
Common questions
- Can I wait a day to see if my dog's swollen paw goes down on its own?
- It is better not to. Swelling that is left without knowing the cause can get worse quickly, particularly if it is an infection or an embedded foreign body, and a same-day check lets your vet catch and treat the cause before it develops further.
- Should I try to remove a thorn from my dog's paw myself?
- Only if it is fully visible, easy to reach, and comes out cleanly with no resistance — otherwise leave it for your vet. Trying to dig out something embedded can push it deeper, cause more pain, or leave part of it behind, which is harder to deal with than the original problem.
- What does an interdigital cyst look like?
- It typically appears as a swollen, often reddish lump between a dog's toes, and it can be painful enough that the dog limps or licks at the area repeatedly. It needs a vet's assessment to confirm and treat properly rather than being managed at home.
- Is a swollen paw ever a sign of something more serious?
- It can be, which is exactly why it needs proper examination rather than a guess. Swelling alongside signs like fever, lethargy or spreading redness can point to a more significant infection or reaction, and your vet is best placed to work out which cause applies to your dog.
Related
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Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.