07/25/2026
Amanita mushrooms are popping up in Southern New England, and they are among the deadliest mushrooms that grow in the wild. At Ocean State Veterinary Specialists, we've treated multiple cases of mushroom toxicity over the past few years, and we want to help keep your pets safe. 🍄
Common signs of mushroom poisoning in dogs include:
• Drooling
• Vomiting
• Diarrhea
• Abdominal pain
• Weakness or lethargy
• Abnormal heartbeat
• Difficulty breathing
• Uncoordinated movements or stumbling
• Disorientation
• Increased drinking and urination
• Yellowing of the gums or eyes
• Tremors or seizures
While there are more than 10,000 species of mushrooms in the United States, only about 100 are known to be toxic. Unfortunately, it can be nearly impossible to tell the difference between a harmless mushroom and a poisonous one.
⚠️ Clinical signs can appear within 15–30 minutes after ingestion, but in some cases may not develop for up to 24 hours. Damage to the liver and kidneys may not become apparent for 2–3 days. ⚠️
If you suspect your pet has eaten any wild mushroom, treat it as an emergency, even if they seem completely normal. Early veterinary care can make all the difference, and waiting for symptoms to appear could be life-threatening. If possible, take a photo of the mushroom or bring a sample (while avoiding direct contact) to help with identification, but don't delay seeking veterinary care.
Stay vigilant on walks and in your yard, especially after periods of rain. Your pet's curiosity could put them at serious risk.
