Course 11 · Face, Eyes and Paws · Lesson 10 of 12
How do you spot a thorn, burr or foreign body in a paw?
Spot thorns, burrs and foreign bodies in paws by checking between toes, watching gait and knowing when to seek vet help.
Spot a thorn, burr or foreign body in a paw by checking between the toes and under the pads after walks, watching for sudden limping, licking, head turning toward a paw, or a dog that stops and holds a paw up, and looking for a visible object, a small puncture, swelling or redness in one spot. Many foreign bodies are visible and loose, but some, especially grass seeds, can embed quickly and travel under the skin, so a paw that stays sore after a check needs veterinary assessment even if nothing can be seen.
What signs suggest a foreign body in a paw?
The most useful sign is sudden change in one paw. A dog that was walking normally and then limps, holds a paw up, licks one paw repeatedly, chews at the toes, or keeps turning to look at the paw may have picked something up. The dog may also stop on a walk, refuse to continue, or show pain when the paw is touched in one specific place. On inspection, look for a thorn, burr, grass seed, small stone, glass fragment or sticky material caught in hair or pressed against skin. Sometimes there is a tiny puncture mark, a spot of blood, swelling between two toes, or redness in one area while the rest of the paw looks normal. Grass seeds deserve special attention in summer and early autumn, because their barbed shape lets them move in one direction, into skin and between toes, and they can cause swelling, discharge and lameness that worsens over days.
How do you check a paw for a foreign body safely?
Check in good light, with the dog settled on a non slip surface, and work paw by paw in a fixed order. Spread the toes gently and look at the skin between them, the pads, the nail folds and the hair that packs between toes. Use a comb to lift hair away from the skin so a small object is not hidden. Feel lightly for a hard lump, a sharp point or a tender spot, and compare with the other paws. If the dog flinches at one place, look there first, but do not press harder to find the cause. A magnifying glass or a phone torch can help, but do not use sharp tools to probe. If an object is lying on the surface and the dog is still, it may be lifted off with fingers or clean tweezers, pulling gently in the direction it appears to have entered. Keep the object if it comes out, note which paw and when, and watch the paw over the next day.
| Finding | What it may mean | Home action |
|---|---|---|
| Burr or seed on the surface | Caught in hair, not yet embedded | Lift off gently, check skin underneath |
| Thorn lying across a pad | Surface puncture risk | Remove only if loose and visible, watch for soreness |
| Small puncture or swelling | Object may be embedded | Do not dig, seek vet advice |
| Glass or sharp fragment | Cut risk, may be embedded | Do not pull if deep, vet advice promptly |
| Nothing seen, paw still sore | Hidden seed or injury possible | Vet check, do not wait and watch for days |
What should you do after removing a surface object?
After a surface object is removed, look again at the skin for a puncture, redness or bleeding. Rinse the paw gently with lukewarm water if it is dirty, pat it dry, including between the toes, and keep the dog off rough ground for the rest of the day if possible. Watch the paw over the next 24 to 48 hours for swelling, heat, discharge, continued licking or returning lameness. A paw that improves steadily and returns to normal use is reassuring, but a paw that worsens, swells between the toes, develops discharge, or causes the dog to go off food or seem unwell needs veterinary attention. Do not apply antiseptic deep into a puncture, do not bandage tightly, and do not give human pain relief. Keep a note of the date, the paw, what was found, and how the paw looked afterwards, because a vet will ask for that sequence.
How can foreign bodies be reduced, without overstating prevention?
No routine prevents every foreign body, but a few habits reduce risk. Check paws after walks in long grass, woodland edges, harvested fields and areas with burrs or thorns, especially in summer. Keep toe hair tidy so objects are visible, and keep the dog on paths where possible during peak grass seed season. After walks, a quick rinse removes loose seeds before they work into the coat, provided paws are dried thoroughly afterwards. Avoid walking on freshly cut grass with seed heads lying on the surface if the dog is prone to picking up seeds, and avoid areas with broken glass or sharp debris. These habits lower exposure, but they do not make a dog immune, and they must not lead to complacency. The check after the walk remains essential even on familiar routes, because a single seed or thorn can cause a problem in one walk. Owners should also check the chest, ears and armpits after walks in seed areas, since seeds can lodge there too, but this lesson focuses on paws, where signs are often clearest.
When should you stop and get help?
Contact a vet promptly if an object is embedded, if bleeding will not stop, if swelling, heat or discharge develops, if the dog is lame or will not bear weight, if a puncture wound is present, or if soreness returns after an object was removed. Seek same day advice for a suspected grass seed, because seeds can migrate and become harder to remove with delay. Do not attempt to cut skin, squeeze a swelling, or flush a puncture with force at home. If the dog is in severe pain, keep it calm, prevent licking by supervision or a vet advised cone, and seek help without delay. A surface burr removed cleanly is a home success; anything deeper, swollen or persistent is a veterinary job, and early assessment usually means simpler treatment.
A quick, systematic paw check after every walk, plus prompt vet help when soreness persists or an object is embedded, catches most foreign bodies before they become a deeper problem.
Further reading
- American Kennel Club, grooming guidance
- RSPCA, dog care advice
- Pet health guidance, first aid