Many wild/yard mushrooms are harmless, but some are deadly and they're very hard to tell apart. The details below use the specific facts for this exposure, rather than treating it like every other food question.
1. Start with the exact exposure
For a closely related comparison, read Store-bought Mushrooms. Treat any unknown wild mushroom as potentially dangerous: a few species cause liver failure.
2. Use the facts to decide whether to monitor or call
Another helpful reference is White Mocha Drink. None: you can't reliably identify the safe ones at home. Any wild mushroom your dog ate, ideally with a photo/sample.
3. If the details are uncertain
Follow the first 10 minutes guide. Photograph the mushroom, then contact your vet or poison control right away.
FAQ
How much Wild Mushrooms is dangerous?
Treat any unknown wild mushroom as potentially dangerous: a few species cause liver failure.
Can I treat this at home?
None: you can't reliably identify the safe ones at home.
When should I call the vet?
Any wild mushroom your dog ate, ideally with a photo/sample.
Compiled from veterinary poison-control and medical reference sources, including the ASPCA Animal Poison Control Center, the Pet Poison Helpline, and the Merck Veterinary Manual. This is general educational information, not a diagnosis or a substitute for examination by your veterinarian. DogSafe's severity ratings are our own assessment, calculated from published guidance and your dog's weight. In an emergency, call ASPCA Animal Poison Control at 888-426-4435 or the Pet Poison Helpline at 855-764-7661.