
Mushrooms are toxic to dogs only when ingested. While most wild mushrooms are harmless, some can cause severe poisoning and even be fatal. Dogs can suffer from mushroom poisoning in the yard or during walks in the park, as mushrooms grow in warm, wet weather and flourish in many places. It can be challenging to identify mushrooms and determine which are safe and which are poisonous. If you suspect your dog has ingested a wild mushroom, take them to the veterinarian immediately, and, if possible, bring a sample of the mushroom or a photo to help identify it.
| Characteristics | Values |
|---|---|
| Prevalence of toxic mushrooms | 1% of all mushroom species are toxic |
| Time taken for symptoms to show | 15 minutes to 24 hours |
| Symptoms | Vomiting, diarrhea, abdominal pain, drooling, tremors, seizures, liver failure, kidney failure |
| Treatment | Induce vomiting, activated charcoal, gastric lavage, IV fluids, medication for neurological symptoms |
| Prevention | Regular checks of the yard, using apps or online groups for identification |
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What You'll Learn

How to identify toxic mushrooms
While most mushrooms are not toxic, some are extremely poisonous and can even be fatal. It is crucial to be able to identify toxic mushrooms, especially if you have pets or children who could accidentally ingest them. Here are some ways to identify toxic mushrooms and prevent mushroom poisoning:
Identification Techniques
- Utilise online resources: There are numerous online resources, such as Facebook groups, websites, and apps dedicated to mushroom identification. These platforms allow you to post or send pictures of mushrooms for identification.
- Examine their characteristics: When identifying mushrooms, it is essential to scrutinise their characteristics, including colour, texture, gills, and stem structure. For instance, the true morel has a pitted cap and a smooth hollow stem, while its poisonous look-alike, the false morel, has a wavy and crumpled cap with a solid stem.
- Cut them open: In some cases, cutting the mushroom in half vertically can help determine its toxicity. For instance, if a Bolete mushroom rapidly stains blue or exhibits any red colouration, treat it as poisonous.
- Observe their behaviour: Some mushrooms, like the Giant Puffball, are edible only when fresh. Once they begin to develop spores, they become unsafe for consumption.
- Learn about local mushrooms: The types of edible and poisonous mushrooms vary by location. It is crucial to familiarise yourself with the wild mushrooms in your specific area before attempting to consume or identify them.
Preventative Measures
- Regularly check your yard: Mushrooms thrive in moist environments, so it is essential to inspect your yard after rainfall or seasonal changes. Remove any mushrooms you find to prevent accidental ingestion by children or pets.
- Train your pets: If you have dogs, it is important to train them not to eat mushrooms and to drop items like sticks and mushrooms on cue. Keep them on a leash when walking in areas with mushroom growth.
- Seek veterinary assistance: If you suspect your pet has ingested a mushroom, seek immediate veterinary care. Signs of mushroom poisoning in dogs include vomiting, diarrhoea, abdominal pain, excessive drooling, GI irritation, and changes in heartbeat.
Remember, it is always better to err on the side of caution. When in doubt, treat the mushroom as poisonous and avoid ingestion.
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What to do if your dog eats a mushroom
It is important to remember that mushrooms can be very harmful to dogs. While most wild mushrooms are harmless, only a few are toxic and can be fatal. If your dog eats a mushroom, it is better to be safe than sorry and take immediate action.
First, try to identify the mushroom. If you witness your dog eating a wild mushroom, pick one or two, or take clear pictures of the mushrooms. There are numerous apps available to help you identify them. Alternatively, you can join the Mushroom Identification Facebook Group and post a picture of the mushroom to ask for help. If you can identify it as harmless, you can breathe a sigh of relief. However, if you are unsure or identify it as toxic, treat it as a medical emergency and call your vet or a 24/7 poison control center immediately.
If your dog has ingested a wild mushroom, your veterinarian may induce vomiting if it has been less than two hours since ingestion. They may also use activated charcoal to bind and remove toxins from the stomach. Hospitalization, IV fluids, and other supportive care may be necessary to prevent the progression of symptoms.
Some common signs of mushroom poisoning in dogs include vomiting, diarrhoea, pain in the abdomen, and excessive drooling. However, symptoms can vary depending on the type of mushroom consumed and can be delayed by up to 24 hours. Therefore, it is crucial to act quickly if you suspect your dog has eaten a mushroom.
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Preventing your dog from eating mushrooms
While most wild mushrooms are harmless to dogs, some are toxic and can cause severe poisoning, and even be fatal. It is therefore important to take steps to prevent your dog from eating mushrooms.
Firstly, it is crucial to regularly check your backyard and other areas where your dog spends time, such as their favourite walking trails or parks. Mushrooms thrive in moist environments, so be particularly vigilant after rainfall. If you spot any mushrooms, remove them immediately.
You can also train your dog to drop items on cue, such as sticks and mushrooms, and keep them on a leash when in areas where mushrooms grow. This will help you to have more control over their surroundings and prevent them from consuming anything harmful.
Additionally, you can use apps or Facebook groups dedicated to mushroom identification to help you determine whether the mushrooms in your yard are safe or toxic. It is always best to assume that any mushroom is poisonous unless you can positively identify it as harmless.
Finally, it is important to be aware that even store-bought mushrooms can pose a problem for dogs if they are served with sauces, oils, seasonings, garlic, or onions. Dogs do not need mushrooms in their diet, so it is best to avoid giving them any at all and opt for alternative treats such as carrot sticks or apple slices instead.
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Treatment methods for mushroom poisoning
While most wild mushrooms are harmless to dogs, some are toxic and can cause severe poisoning. Since it can be challenging to identify mushrooms and determine their safety, it's crucial to seek immediate veterinary care if your dog consumes any wild mushrooms. Treatment methods for mushroom poisoning in dogs include:
Inducing Vomiting or Using Activated Charcoal
If it has been less than two hours since your dog swallowed a mushroom, a veterinarian may induce vomiting to expel the toxins from the dog's stomach. Alternatively, they might use activated charcoal to bind and remove the toxins.
Hospitalization and IV Fluids
Hospitalization is often necessary, especially for highly toxic mushrooms or when symptoms like vomiting and diarrhea are severe. During hospitalization, IV fluids are administered to address dehydration, and other supportive care measures are provided.
Medications and Therapy
Medications are given to alleviate specific symptoms such as vomiting, diarrhea, muscle twitching, and seizures. Liver-support medications may also be included in the treatment regimen. Therapy may be required over a period of hours or days, depending on the amount and type of mushroom ingested.
Monitoring Organ Function
Since mushroom toxins can affect the liver and kidneys, it's crucial to monitor organ function through repeated liver and kidney function tests. Blood and urine samples are typically taken to assess organ function and determine the severity of poisoning.
Early and Aggressive Treatment
Prompt and aggressive treatment increases the chances of a successful outcome. Even if the dog is not showing immediate symptoms, therapy may be initiated to prevent the development of signs of poisoning.
Remember, if you suspect your dog has consumed a wild mushroom, seek veterinary care immediately. Bring a sample or take clear pictures of the mushroom to aid in identification and diagnosis.
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Signs of mushroom poisoning
While most wild mushrooms are harmless to dogs, some are toxic and can cause severe poisoning. It's hard to identify which mushrooms are harmful without specialist knowledge. If you see your dog eating a wild mushroom, you should take a sample or a clear picture of the mushrooms to help with identification.
- Vomiting
- Diarrhea
- Pain in the abdomen
- Excessive drooling
- Tremors
- Seizures
- Stumbling
- Dehydration
- Decreased heart rate
- Liver failure
- Kidney failure
If you suspect that your dog has consumed a wild mushroom, you should seek immediate veterinary care. A veterinarian may induce vomiting or use activated charcoal to remove toxins from the stomach. Hospitalization, IV fluids, and other supportive care may also be necessary.
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Frequently asked questions
Yes, yard mushrooms can be harmful to dogs. While most wild mushrooms are harmless, only a few are toxic and can be fatal.
If your dog eats a mushroom in the yard, take them to the veterinarian immediately. If less than two hours have passed since ingestion, your veterinarian may induce vomiting or use activated charcoal to bind and remove toxins from the stomach.
It can be very difficult to identify mushrooms and determine which are safe and which are poisonous. If you find mushrooms in your yard, you can join the Mushroom Identification Facebook Group or use apps to help identify them.
Symptoms of mushroom poisoning in dogs include vomiting, diarrhea, abdominal pain, dehydration, tremors, seizures, and liver and kidney failure. Symptoms can occur within 15-30 minutes of ingestion but may be delayed up to 24 hours.
To prevent your dog from eating yard mushrooms, regularly check your yard for mushrooms and remove them immediately. Keep your dog on a leash when walking in areas where mushrooms grow, and train your dog to drop items like sticks and mushrooms on cue.

























