PupkeeperToxic
Dog ate bleach? What to do
Household bleach usually causes mild vomiting and drooling, but concentrated bleach can burn the gut, and strong fumes can harm the lungs.
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, Australia, Canada, New Zealand
What to do now
- Call your vet or a pet poison line now.
- Keep the bottle and bring it with you.
- Rinse bleach off the skin and fur with plenty of tap water.
Don't
- Don't make your dog vomit. Concentrated bleach can burn on the way back up.
- Don't try to neutralize it with another chemical.
Signs to watch for
- Drooling
- Vomiting
- Low energy
- Not eating
- Diarrhea
- Coughing or breathing trouble after fumes
When signs appear: Soon after; lung signs from fumes can take 12 to 24 hours
Why
Bleach is an irritant, and concentrated bleach is corrosive. Breathing concentrated fumes can cause fluid in the lungs 12 to 24 hours later.
Sources
- Merck Veterinary Manual: Household Hazards
- Merck Veterinary Manual: Toxicoses From Household Cleaners and Personal Care Products
- Pet Poison Helpline: Alkalis
Guide reviewed 9 October 2026.
General information from the sources above, not a diagnosis. When in doubt, call your vet.