Dog with a broken or torn nail
Apply firm pressure to stop bleeding, dip the tip in cornflour or styptic powder if you have it, and book a vet visit the same day for a fully torn or split-down-the-quick nail.
Recognise the signs
- Sudden yelp, holding up paw
- Bleeding — sometimes alarmingly profuse for a small injury
- Visible split, crack, or nail hanging at an angle
- Limping
- Licking persistently at one toe
- Painful when paw is touched
First aid steps
- Restrain gently — muzzle if pain is high and the dog tolerates it.
- Apply firm pressure with clean gauze or a clean cloth for 5 minutes without lifting.
- If still bleeding, dip the nail tip in cornflour, plain flour, or pet styptic powder; press the powder onto the bleeding point.
- Bandage lightly if bleeding persists — non-stick pad, then cohesive bandage, loose enough to slide two fingers in at the top.
- Cover with a sock or boot to keep clean.
- Phone the vet for any partially attached nail, fully torn nail, or bleeding that does not stop within 10 minutes.
Do NOT
- Do not pull off a partially attached nail — sedation and proper trim are needed.
- Do not use human styptic pencils intended for shaving cuts.
- Do not bandage too tightly — paws swell quickly.
- Do not delay vet care thinking 'it's just a nail' — exposed quick is genuinely painful and prone to infection.
When to phone the vet immediately
- Bleeding that does not stop after 10 minutes of pressure
- Nail torn fully off with bleeding from the nail bed
- Nail hanging by a thread of skin
- Significant pain — non-weight-bearing for more than a few minutes
- Signs of infection over the following days — redness, swelling, discharge
Signs that can usually wait for a routine appointment
- A small chip at the tip of the nail with no bleeding and a comfortable, weight-bearing dog can be monitored at home and tidied at the next routine clip.
Common causes
- Snagging the nail on a carpet, root, or fence
- Jumping off furniture and catching a claw
- Dewclaws caught on collars or undergrowth
- Overlong nails being more vulnerable to snagging
- Brittle nails from poor diet, age, or underlying skin disease
What the vet will need to know
- How the nail was torn
- Which paw and which nail
- Bleeding controlled or ongoing
- Whether the dog is weight-bearing
- Any history of brittle nails or skin/coat issues
Aftercare
- Vet usually trims the damaged portion under sedation, leaving the quick to heal.
- Antibiotic and pain relief course often prescribed.
- Buster collar for 5–7 days to stop licking.
- Short, dry walks only for 5–10 days; cover with a sock or boot outdoors.
- Watch for redness, swelling, or persistent licking.
Prevention
- Keep nails clipped to a length that just clears the floor when standing.
- Avoid letting dewclaws grow long enough to snag.
- Trim or grind a little, often, rather than rare big trims.
- Inspect the garden and walk routes for snagging hazards.
- Address underlying nail-bed disease (lupoid onychodystrophy and similar) with vet investigation if nails are repeatedly brittle.
Breed-specific notes
- Greyhounds and other thin-skinned breeds bleed dramatically from nails — keep cornflour at home.
- Long-coated breeds with hairy paws hide nail issues — weekly inspection is worth it.
Frequently asked questions
Will the nail grow back?
Usually yes — a fresh nail grows from the bed over several weeks to a few months. The new nail may look slightly different in shape or colour. Repeated breakage at the same site warrants vet investigation for nail-bed disease.
How does cornflour stop bleeding?
Cornflour and styptic powders work by promoting clot formation at the bleeding point. Pressed firmly into the nail tip for 30–60 seconds, they often stop bleeding that pressure alone has failed to control. They are inexpensive and worth keeping in any home with a dog.
Should I clip my dog's nails myself?
Many owners can, with practice and the right tool — guillotine, scissor, or grinder. Black nails are harder because the quick cannot be seen. If you are nervous, ask the vet nurse to demonstrate, or use a groomer for routine clips. Quicking once is unpleasant; quicking repeatedly damages confidence and the nail-bed.