PupkeeperToxicEmergency
Adder bite (UK and Europe) and dogs: what to do
Venomous. The adder is the UK's only venomous snake; bites cause painful swelling and can be very serious, but most treated dogs recover.
If your dog ate or touched this, call your vet or a pet poison line now
United States
Poison lines in other countries: United Kingdom, Canada, Australia, New Zealand, Belgium, France, JM, PR, Singapore, Switzerland, TT, VI
Adder bite (UK and Europe) and dogs: key facts
- Verdict
- Toxic · Emergency: get help now
- What it can do
- Pain and swelling around the bite, tiny puncture marks, limping, vomiting, drooling or pale gums and weakness and wobbling. All 8
- How fast
- Signs can appear quickly
- What to do now
- Go to an emergency vet now. All steps
- Sources
- PDSA, Royal Kennel Club. Reviewed 9 October 2026.
What to do now
- Go to an emergency vet now.
- Keep your dog as still and calm as possible.
- Carry your dog to the car if you can.
- Call the vet to say you are on your way.
Don't
- Don't use a bandage or tourniquet, or try to suck out venom.
- Don't try to find, catch or harm the snake; adders are protected.
Symptoms to watch for
- Pain and swelling around the bite
- Tiny puncture marks
- Limping
- Vomiting, drooling or pale gums
- Weakness and wobbling
- Swelling of the face or neck
- Bruising or bleeding
- Trouble breathing or collapse
When signs appear: Signs can appear quickly
Why
Bites are most likely in spring, when adders come out, and are usually on the face, muzzle or front paws. Sudden death can happen if venom goes straight into the bloodstream.
Sources
Guide reviewed 9 October 2026. Page updated 7 November 2026.
General information from the sources above, not a diagnosis. When in doubt, call your vet.