Dog Kisses Gone Wrong: Can Humans Get Hookworms From Dog Saliva?

September 29, 2025 |

The information indicates that humans can indeed get hookworms from dogs, primarily through contact with contaminated soil or feces. According to the PetMD article, certain intestinal parasites including hookworms can be carried in dog saliva, though transmission this way is rare. The Beverly Oaks Animal Hospital article mentions that parasites can undergo visceral larval migrans and may be present in saliva during certain stages of their lifecycle. The Vet Explains Pets article confirms hookworms are zoonotic parasites that can be transmitted from dogs to humans.

Now I’ll create a blog article on this topic:

Let’s face it – most of us dog parents have been there. You’re relaxing on the couch when suddenly your furry friend ambushes you with slobbery kisses right on your face. It’s adorable, but sometimes in the back of your mind, you wonder: “Is this actually safe?”

If you’ve ever googled about dog saliva and parasites at 2 AM after your pup licked your face, you’re not alone. Today, I’m diving into a question that might make your skin crawl (literally): Can humans get hookworms from dog saliva?

The Quick Answer: Yes, But It’s Complicated

The short answer is yes it’s possible to get hookworms from dog saliva, but it’s relatively rare compared to other transmission methods. Before you ban all doggy kisses forever let’s dig deeper into what you actually need to know.

Understanding Hookworms: The Unwelcome Guests

Hookworms are nasty little intestinal parasites that primarily affect dogs but can also make their way into humans (yikes!) These parasites live in the intestines of infected dogs and feed on their blood, which can lead to anemia and other health issues.

The typical lifecycle of hookworms goes something like this:

  1. Adult hookworms live in a dog’s intestines
  2. They lay eggs that pass through the dog’s feces
  3. The eggs hatch into larvae in soil
  4. These larvae can infect new hosts through skin contact or ingestion

How Humans Usually Get Hookworms From Dogs

Before we focus specifically on saliva, it’s important to understand the most common ways humans get hookworms from dogs:

  • Walking barefoot on contaminated soil or sand where dog poop has been
  • Gardening without gloves in areas where dogs have pooped
  • Accidental ingestion of microscopic eggs from contaminated environments
  • Direct contact with infected dog feces

The most common form of hookworm infection in humans is something called “cutaneous larva migrans” – where the hookworm larvae penetrate the skin (usually on feet or hands) and cause intensely itchy, raised tracks as they migrate under the skin. Not pleasant!

Dog Saliva and Hookworms: What’s the Connection?

Here’s where things get interesting. Dog saliva isn’t typically considered the primary transmission route for hookworms, but it’s not impossible either. Here’s why:

  1. Dogs are groomers – They lick their bodies, including their rear ends after defecation. This means microscopic hookworm eggs can transfer to their mouths and saliva.

  2. Lifecycle stages – During certain phases of the hookworm lifecycle, larvae may be present in a dog’s mouth after they’ve coughed up and swallowed larvae that migrated through their lungs (part of the parasite’s complex lifecycle).

  3. Cross-contamination – Dogs often sniff and lick areas where other dogs have eliminated, potentially picking up parasite eggs.

According to veterinary parasitologists, hookworm larvae can potentially be transmitted through a dog’s saliva if that saliva contains larvae that have been coughed up during migration. However, this method of transmission is considered less common than the direct fecal-soil-human route.

Risk Factors: Who Should Be Extra Careful?

Not everyone has the same risk level when it comes to getting hookworms from dog saliva. The people who should be most cautious include:

  • Children – They often have closer face-to-face contact with dogs and may not wash their hands as thoroughly
  • Elderly individuals – Their immune systems may be less robust
  • Immunocompromised people – Those with weakened immune systems due to medication or health conditions
  • Pregnant women – Who may need to take extra precautions

Signs You Might Have a Hookworm Infection

If you’re worried you might have contracted hookworms (from saliva or otherwise), here are symptoms to watch for:

  • Skin rash – Especially itchy, raised, red tracks where larvae have migrated under the skin
  • Abdominal pain – Can occur if hookworms reach the intestines
  • Diarrhea – Sometimes with blood
  • Fatigue – Due to anemia if infection is severe
  • Cough – If larvae migrate through the lungs

Most hookworm infections in humans are self-limiting, meaning they’ll resolve on their own eventually because humans aren’t the parasites’ preferred host. However, seeking medical attention is always recommended if you suspect an infection.

Prevention: Keeping Both You and Your Dog Safe

The good news is that preventing hookworm transmission (whether from saliva or the more common routes) is pretty straightforward:

For Your Dog:

  • Regular deworming – Follow your vet’s recommendation for deworming schedules
  • Monthly parasite prevention – Many heartworm preventatives also control hookworms
  • Prompt poop cleanup – Don’t leave dog waste in your yard or public spaces
  • Routine vet checks – Including fecal tests to detect parasites early

For You:

  • Wash your hands after petting dogs, especially before eating
  • Consider limiting face licking – Particularly if your dog has access to outdoor areas where other dogs eliminate
  • Wear shoes outdoors – Especially in areas frequented by dogs
  • Use gloves when gardening – To prevent skin contact with contaminated soil
  • Cover sandboxes when not in use – To prevent cats and other animals from using them as litter boxes

The Reality Check: How Worried Should You Be?

I don’t wanna freak you out unnecessarily. While hookworm transmission via dog saliva is possible, it’s not super common. Most infections in humans come from walking barefoot on contaminated soil or direct contact with feces.

A veterinary parasitologist I spoke with explained that while dog saliva can technically harbor hookworm larvae, the concentration and viability of these larvae in saliva is usually much lower than in feces. So while it’s good to be aware, there’s no need to panic about every doggy kiss.

Some Facts About Dog Saliva You Might Not Know

Since we’re on the topic of dog saliva, here are some interesting facts:

  1. Dog saliva has some antibacterial properties – But not enough to make it “clean” or safe for wound healing as some myths suggest

  2. You can be allergic to proteins in dog saliva – In fact, for some people, the allergy to dog saliva is stronger than to dander

  3. A dog’s mouth is NOT cleaner than a human’s – Both contain hundreds of different bacteria species, they’re just different types

  4. Dog saliva is slightly alkaline (pH 7.5-8) compared to human saliva (pH 6.5-7), which helps dogs resist cavities better than humans

  5. Some dog breeds drool more than others – Great Danes, Newfoundlands, and St. Bernards are famous droolers due to their mouth structure

What Vets Say About Hookworms and Dog Kisses

Most veterinarians take a balanced approach to the issue of dog saliva and parasite transmission. One vet I consulted put it this way: “While theoretically possible, getting hookworms from dog saliva isn’t high on my list of concerns for most pet owners. Regular deworming and basic hygiene are typically sufficient precautions.”

That said, vets do recommend more caution in households with:

  • Young children who might not have good hygiene habits
  • Elderly family members
  • Anyone with a compromised immune system
  • Newly adopted puppies (who almost always have some parasites)

The Bottom Line: Should You Let Your Dog Kiss You?

This is ultimately a personal decision based on your comfort level and risk factors. Here’s my take:

  • If your dog is on regular parasite prevention and gets routine vet care, the risk is very low
  • If you’re immunocompromised or have specific health concerns, talk to your doctor
  • Allowing kisses on the hand or arm is lower risk than face/mouth kisses
  • Always wash your face after slobbery dog kisses, especially before eating

I personally still let my dog give me kisses occasionally, but I’m careful to wash up afterwards and I don’t let him lick near my mouth. It’s about finding a balance between enjoying that special canine affection and being sensible about health.

Final Thoughts

The bond we share with our dogs includes physical affection, and for many dogs, licking is an important way they express that bond. Understanding the actual risks helps us make informed decisions without unnecessary fear.

The next time your pup tries to shower you with slobbery love, you’ll know the facts about hookworms and can decide for yourself where to draw the line. And remember – regular vet care for your dog protects both of you from parasites and other health concerns.


Disclaimer: This article is for informational purposes only and is not intended to replace professional medical or veterinary advice. If you suspect your dog has parasites or you have symptoms of a parasitic infection, please consult with appropriate healthcare professionals.

can humans get hookworms from dog saliva

Don’t get bittenRead more about how to prevent animal bites and what to do if you do get bitten.

Capnocytophaga infection can cause serious complications, including sepsis, heart attack, kidney failure, and gangrene. Some people may need to have fingers, toes, or limbs amputated.

If you have been bitten by a dog or cat, wash the bite area right away with soap and water. Call your doctor or go to an urgent care clinic. Even if you dont feel sick, dog and cat bites can cause a Capnocytophaga infection and other diseases like Pasteurella, Bartonella (cat-scratch disease), or rabies.

Other types of Capnocytophaga infection

Other Capnocytophaga bacteria can also be found in human mouths. People who have weakened immune systems can sometimes get sick from those bacteria.

People who get sick from the kinds of Capnocytophaga found in people’s mouths can get infections in their eyes, gums and mouth tissues, and respiratory tracts (nose, throat, lungs).

If you have the following symptoms within 14 days of getting bit by a dog or cat, contact a healthcare provider immediately and tell them that you were recently bitten by an animal.

People who are infected with Capnocytophaga can have a range of signs and symptoms:

  • Blisters around the bite area
  • Redness, swelling, draining pus, or pain at the bite area
  • Fever
  • Diarrhea and/or stomach pain
  • Vomiting
  • Headache and/or confusion
  • Muscle or joint pain

In all Capnocytophaga infections the bacteria can enter the blood stream, which can lead to infection in various parts of the body (sepsis). Infection can also cause the following:

  • Inflammation of the lining of the heart (endocarditis)
  • Collections of pus, redness, and swelling in various body tissues (abscesses)
  • Inflammation of the eyes, face, lymph nodes, or brain membranes (meningitis)

Most dog or cat bites do not lead to a Capnocytophaga infection or any illness. But you should take precautions if you have contact with animals, especially if you have a condition that puts you at higher risk of infection. These conditions include:

  • Having a weakened immune system (immunocompromise) from conditions like cancer, diabetes, or HIV, among others
  • Taking certain medicines that weaken your immune system, such as chemotherapy
  • Not having a spleen (asplenic)
  • Alcohol use disorders

If any of these conditions apply to you, speak with your healthcare providers about how to be safe around dogs and cats.

Preventing Capnocytophaga infection starts with preventing bites from dogs and cats, especially if you have a condition that puts you at higher risk of getting sick.

Can You Get Worms from Your Pet?

FAQ

Can dogs get hookworms?

Hookworms, belonging to the family Ancylostomatidae, are another common parasite found in dogs. Ancylostoma caninum is a prevalent species that can infect both dogs and humans. Skin penetration: Hookworm larvae can penetrate the skin of humans, typically through bare feet or exposed skin, while walking in contaminated areas.

What parasites can be transmitted from dogs to humans?

The most common parasites that can be transmitted from dogs to humans include roundworms, hookworms, tapeworms, and ringworms. These parasites can be found in dog feces, fleas, and even their saliva. Roundworms, hookworms, and tapeworms are internal parasites, while ringworms are a type of fungal infection that affects the skin.

Can dogs get worms?

Dogs can be infected with several types of worms, each with varying life cycles and transmission methods. Recognizing these differences is crucial to understanding the risk they pose to humans. The most prevalent intestinal worms in dogs include roundworms, hookworms, whipworms, and tapeworms.

Can a dog get hookworm from a scratch?

Hookworm larvae can penetrate the skin of humans through minor cuts or scratches. In fact, a single hookworm larva can infect a human through a single scratch. Hookworms can also be transmitted through contact with contaminated soil, which can happen when walking barefoot in areas where dogs have defecated.

Can humans catch hookworms?

Hookworms are a type of parasitic worm that can infect dogs, and humans can catch them from their furry friends. Humans can catch hookworms through contact with contaminated feces, soil, or contaminated water. Hookworm larvae can penetrate the skin, usually through cuts or scratches.

How do worms spread in dogs?

Roundworms, hookworms, and whipworms primarily spread through the fecal-oral route. This means that eggs are shed in the dog’s feces, and another animal (or human) becomes infected by ingesting contaminated soil, water, or other materials. Tapeworms, on the other hand, often involve an intermediate host, such as a flea.

Can you get hookworms from your dog licking you?

Parasites like hookworm, roundworm, and giardia can be passed from dog to human through licking. Salmonella, too, can be passed from your dog to you, or vice versa.

How likely is it for humans to get hookworms from dogs?

It is unlikely for humans to get a full hookworm infection from a dog because the species of hookworms that infect dogs are usually different from those that infect humans.

Can I get worms from my dog’s saliva?

Yes, you can get worms from dog saliva, but it’s rare and more likely to occur if the dog has recently licked its anus or if you have a wound in your mouth.

Can dog saliva be harmful to humans?

Dog saliva contains bacteria and other microorganisms, such as Capnocytophaga, that can be harmful to humans, especially those with weakened immune systems, open wounds, or allergies. While infections are rare for most people, contact with dog saliva can cause skin irritations or serious infections if it enters the body through cuts or mucous membranes.