My Dog Ate Mushroom
Wild mushroom ingestion can be a veterinary emergency because some mushrooms cause severe vomiting, liver failure, neurologic signs, or death. Here’s what to do right now, what symptoms to watch for, and when your dog needs urgent in-person care.
This is a veterinary emergency.
If your dog ate a wild mushroom, call your vet, an emergency vet, or Pet Poison Helpline right away—do not wait for symptoms, because some dangerous mushroom toxins are delayed.
Talk to a vet now →Need Emergency Help Right Now?
If your dog has consumed a mushroom and is showing severe symptoms — such as vomiting, tremors, seizures, or collapse — they may need in-person emergency veterinary care immediately. If this is the case, we recommend calling our partner Pet Poison Helpline ($85 consultation fee). They work directly with your emergency vet to guide treatment and help resolve your pet's case faster.
When to call a vet
Go to the ER now
- ● Your dog is vomiting repeatedly, having diarrhea, or seems suddenly very weak
- ● You notice tremors, wobbliness, disorientation, agitation, hallucination-like behavior, seizures, or collapse
- ● Your dog has trouble breathing, severe drooling, a very slow heart rate, or marked abdominal pain
- ● Your dog ate a wild mushroom and now has yellow gums or eyes, black tarry stool, or worsening symptoms hours later
See a vet within 24 hours
- ● You saw your dog eat any wild mushroom, even if your dog seems normal
- ● You are not sure whether the mushroom was wild, decorative, dried, or part of an edible or psychedelic product
- ● Your dog is a puppy, has liver disease, or may have eaten a large amount
Watch at home, call if it worsens
- ● Some mushroom toxins cause delayed signs, so a normal appearance right after ingestion does not rule out danger
- ● Call your vet for next steps rather than waiting to see what happens
What Happened & Why It's Dangerous
Wild mushrooms are hard to identify
Many toxic mushrooms look similar to harmless ones, so owners usually cannot safely tell which kind a dog ate.
Some mushrooms cause rapid stomach upset
Depending on the species, signs can begin within minutes to hours and may include vomiting, diarrhea, drooling, and abdominal pain.
Some affect the brain and nervous system
Certain mushroom toxins can cause stumbling, tremors, seizures, abnormal behavior, or severe sedation.
Some can damage the liver or kidneys
The most dangerous mushrooms may cause delayed but life-threatening organ injury, including liver failure, and early treatment offers the best chance of recovery.
What to Do Right Now
1) Remove access — Take away any remaining mushrooms so your dog cannot eat more.
2) Call for help immediately — Call your veterinarian, a 24/7 emergency veterinarian, or Pet Poison Helpline right away for case-specific advice.
3) Do not induce vomiting unless a veterinarian tells you to — Home treatment can be risky and may delay the care your dog needs.
4) Collect evidence if you can do so safely — Take clear photos of the mushroom from several angles and bring a sample in a paper bag if available. This may help with identification.
5) Watch for symptoms on the way — Vomiting, diarrhea, drooling, wobbliness, tremors, seizures, weakness, and collapse all need urgent veterinary attention.
6) Expect diagnostics and supportive care — Your vet may recommend decontamination, bloodwork, monitoring, IV fluids, and treatment based on the type of toxin suspected and your dog's symptoms.
- 1) Remove access
- 2) Call for help immediately
- 3) Do not induce vomiting unless a veterinarian tells you to
- 4) Collect evidence if you can do so safely
- 5) Watch for symptoms on the way
- 6) Expect diagnostics and supportive care
Common questions about dogs eating mushrooms
How much mushroom is toxic to a dog?
What are the symptoms of mushroom poisoning in dogs?
How long until symptoms appear?
Are store-bought mushrooms dangerous for dogs?
Is mushrooms safe for dogs in general?
This page covers what to do when your dog has already eaten mushrooms. For general safety information — including safe amounts, nutritional value, and how to serve it — see our food safety guide.
Can Dogs Eat Mushrooms? →Disclaimer: The information provided in this article is for educational purposes only and does not constitute veterinary medical advice. Reading this content does not establish a veterinarian-client-patient relationship. Every pet is different — always consult a licensed veterinarian before making decisions about your pet's health, diet, or care. If you'd like personalized guidance, you can talk to one of our vets. If your pet is experiencing a medical emergency, contact your local emergency animal hospital immediately.