Mushroom Poisoning in Dogs

3 min read


Mushroom poisoning occurs as a result of ingesting toxic mushrooms, which is a common hazard for dogs because of the amount of time they spend outdoors or in wooded areas, particularly in the summer and fall. Toxic mushrooms are classified into four categories (A, B, C, D), based on the clinical signs and their time of onset, and into seven groups (1-7) on the basis of the toxin they contain. 

However, because it is sometimes difficult to identify what type of mushroom your dog has consumed, you should always bring the suspected mushroom with you when you take your dog to the veterinarian.

Symptoms and Types of Mushroom Poisoning in Dogs

Symptoms vary greatly depending on the type of mushroom ingested. Category A mushrooms, for example, are the most toxic and cause the destruction of cells, especially liver and kidney cells. Category B and C mushrooms, meanwhile, affect nervous system, and category D mushrooms cause gastrointestinal irritation. The following are some of the more common symptoms associated with mushroom poisoning:

Poisonous mushrooms for dogs include the following types:

Liver toxic mushrooms

- Amanita phalloides (Death Cap Mushroom)

- Amanita ocreata (Angel of Death)

- Lepiota (False Parasol)

- Galerina

Hallucinogenic Mushrooms

- Conocybe

- Gymnopilus

- Psilocybe

- Panaeolus

Toadstool Mushrooms

- Amanita pantherina (Panther Cap)

- Amanita muscaria (Fly Agaric)

Mushrooms Containing Muscarinic Agents

- Inocybe

- Clitocybe

False Morel Mushrooms

- Gyromitra esculenta (Beefsteak)

- Gyromitra caroliniana

- Mushrooms in the Verpa genre

- Mushrooms in the Helvella genre


Mushrooms That Cause Gastrointestinal Distress

- Boletus

- Chlorophyllum

- Entolomo

Find out more information on mushrooms that are poisonous to dogs.

Causes of Mushroom Poisoning in Dogs

Mushroom poisoning in dogs occurs when a canine ingests a toxic mushroom(s). The severity of the poisoning will depend on the type of mushroom your dog consumes and the amount of mushrooms he eats. 

Diagnosis of Mushroom Poisoning in Dogs

You will need to give a thorough history of your dog’s health to your veterinarian, including the onset and nature of the symptoms, and possible incidents that might have precipitated the complications. He or she will then perform a complete physical examination as well as a complete blood count, biochemistry profile, and urinalysis -- the  results of which may reveal may reveal abnormally low blood glucose levels (hypoglycemia) and abnormally high levels of liver enzymes due to liver damage. Your veterinarian will also typically take a sample from the stomach to identify the type of mushroom.

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