Curious about the potential dangers that garden snails may pose to you and your beloved pets? In this article, we will explore whether these seemingly harmless creatures can actually be harmful. Whether it’s their slimy trails or the potential transmission of parasites, we’ll uncover the truth about the risks associated with garden snails. So grab a cup of tea, sit back, and let’s find out if you have anything to worry about when it comes to these little shell-dwellers.

Are Garden Snails Dangerous To Humans Or Pets

Potential Dangers of Garden Snails to Humans

Garden snails may seem harmless and even charming in their slow movements and intricate shells, but it’s important to be aware of the potential dangers they can pose to humans. While direct physical harm from garden snails is unlikely, there are other risks that should be taken into consideration.

Potential Dangers of Garden Snails to Pets

Just as garden snails can be a potential danger to humans, they can also pose risks to our beloved pets. While pets may be curious about these small creatures, it’s essential to be aware of the potential dangers they can bring.

Types of Garden Snails

When it comes to garden snails, there are several common species that one may encounter. The most widespread is Helix aspersa, also known as the common garden snail. Other notable species include Cornu aspersum and Achatina fulica, also called the giant African land snail.

Health Risks Associated with Garden Snails

While garden snails may not cause harm through direct contact, they can be carriers of certain parasites and toxins that pose health risks to humans and animals. It’s crucial to be aware of these potential risks and take necessary precautions.

Transmitting Parasites

One of the primary health risks associated with garden snails is the transmission of parasites to humans. Garden snails can act as intermediate hosts for parasites such as Angiostrongylus cantonensis, commonly known as rat lungworm, and various species of nematodes.

Poisonous Snail Species

In addition to the transmission of parasites, some snail species are themselves poisonous. The infamous cone snails found in tropical regions are known for their venomous sting, which can be dangerous to humans. However, it’s essential to note that garden snails are generally not considered poisonous to handle.

Are Garden Snails Dangerous To Humans Or Pets

Transmission of Parasites by Garden Snails

Understanding how parasites are transmitted by garden snails is crucial to better comprehend the associated health risks.


Angiostrongyliasis, also known as rat lungworm disease, is a parasitic infection that can be transmitted by garden snails. The life cycle of the parasite involves snails ingesting feces-contaminated larvae, which then develop into infective larvae within the snail’s body. When humans consume undercooked snails or vegetables contaminated with the snails or their mucus, they can become infected.

Rat Lungworm Disease

Rat lungworm disease is caused by the parasite Angiostrongylus cantonensis. The symptoms can range from mild to severe and may include headache, neck stiffness, nausea, vomiting, and even neurological complications. In rare cases, it can be life-threatening, particularly for individuals with compromised immune systems.

Symptoms of Parasitic Infections in Humans

Being aware of the symptoms associated with parasitic infections caused by garden snails is vital for early detection and proper medical attention.

The symptoms of angiostrongyliasis can vary and may mimic other illnesses. They often include severe headaches, neck stiffness, fever, nausea, vomiting, and abdominal pain. In some cases, neurological symptoms such as muscle weakness and tingling sensations may also occur.

Are Garden Snails Dangerous To Humans Or Pets

Treatment and Prevention of Parasitic Infections

Prompt medical treatment and preventive measures are crucial in managing and avoiding parasitic infections caused by garden snails.

Medical Treatment

If an individual suspects they have been infected with parasites from garden snails, seeking medical attention is essential. A healthcare professional will evaluate the symptoms and may recommend treatment options such as antiparasitic medications and supportive care.

Preventive Measures

Prevention is always better than cure, and taking precautions can significantly reduce the risk of parasitic infections from garden snails. It is advisable to thoroughly wash and cook any produce that may have come into contact with snails. Additionally, keeping garden areas clean and free from snail habitats can also help minimize the risk of exposure.

Risks for Pets from Garden Snails

Just as garden snails can pose health risks to humans, they can also be dangerous for our furry friends.

Pets, particularly dogs and cats, may be curious about garden snails and could ingest them. This can lead to potential health issues, including infections and poisoning.

Are Garden Snails Dangerous To Humans Or Pets

Garden Snail-Related Illnesses in Pets

Understanding the specific illnesses that can affect pets due to garden snails is crucial for their overall wellbeing.

Lungworm Infection

One of the primary concerns for pets is the risk of lungworm infection caused by Angiostrongylus species. Dogs are particularly susceptible to this parasite and can become hosts when they accidentally ingest infected garden snails or slugs.


Salmonellosis is a bacterial infection that can be transmitted from garden snails to pets, primarily through ingestion. Dogs and cats can become infected with Salmonella by consuming snails or through contact with surfaces contaminated by snail excrement.


While garden snails may appear harmless, they carry potential health risks for both humans and pets. Understanding these risks, being aware of the symptoms associated with parasitic infections, and taking preventive measures can help ensure the safety and wellbeing of both you and your furry companions. By practicing appropriate hygiene and being cautious around snails, you can continue to enjoy your garden while minimizing the potential dangers they can bring.

Are Garden Snails Dangerous To Humans Or Pets

By AnnieandPeter

Annie and Peter, the authors and founders of Welcome you to our website! With a passion for all things home and garden, we have created this platform to share a wealth of knowledge and expertise. Whether you're a novice or an experienced homeowner, our informative posts and unbiased product reviews will provide you with valuable insights. As dedicated authors, we strive to offer reliable and up-to-date information to help you create your dream living space. Join us at Annie and Peter and let us be your trusted guide to home and garden.