Can people get worms from dogs or cats

Many pet owners ask their veterinary professionals, “Can humans get worms from dogs?” The answer is yes — we can absolutely get intestinal parasites from our dogs or cats.

Roundworm infection in people is not as uncommon as you might think. When people have a roundworm problem, they tend to keep it quiet. When you catch up with a friend, you always ask, “What’s new?” right?

While shaking your hand, has anyone ever cheerfully informed you, “I have roundworms! How are you?” Mmm hmm… You’d be making a beeline for the nearest sink or hand sanitizer if that ever happened.

In this fascinating article, we’ll look at three common parasites: roundworms, hookworms and tapeworms.

It Starts With a Lick o’ the Butt

Can humans get worms from dogs?

Roundworm eggs are shed constantly by the infected dog (or, most commonly, puppy). If he licks his butt and then licks you, the contamination begins. When you touch your mouth, you allow the eggs (unseen by your eyes) to enter your body. You or your children can also pick them up from infected dog poop in the backyard. Once they get in, they make their way into your intestines and grow — big time.

“Can humans get worms from dogs? Yup, and it starts with butt lick.” – Click to Tweet

Occasionally, the worms will form a ball within the body and cause an intestinal blockage. This is when roundworms (Toxocara canis) stop being a minor issue and become a major problem. Usually, the person will notice the long, spaghetti-like parasites in their stools. (Yech!)

They’re pretty nasty, gross and definitely scary. Your doctor will prescribe roundworm medicine that will clear up the problem. If the worms ball up and create a blockage, surgery is often required to “unblock and remove” the worms. Oral treatment will need to follow that operation.

Watch This Video From a Vet

Next, we’ll talk about hookworms and tapeworms, but first, here’s a veterinarian who will explain the basics of how humans can get worms from dogs. Watch this, then we’ll tell you more of what you need to know:

Bare Feet Often the Culprit

Hookworms enter the human host usually through the skin. More often than not, the infestation occurs from the person walking through contaminated soil with bare feet. A rash with incredible itching will be noticed at the site of entry. The person can experience diarrhea, weight loss and anemia. Hookworms are not to be taken lightly. People have actually died from untreated hookworm infections. If you suspect an internal parasite infection, please seek medical help regardless of how embarrassed you feel.

Watch Those Fleas!

Wondering if we can get tapeworms from dogs or cats? The answer, again, is yes. It’s very rare, but transmission of the Dipylidium caninum tapeworm can occur if you were to swallow an infected flea (which is exactly how our pets get tapeworms).

Proper sanitation will help decrease your risk of getting parasites from dogs. Do not walk barefoot where your dog poops. Wash your hands after petting a pet that has been diagnosed with parasites. Never let a puppy with worms sleep with you! The eggs can get into the bedding and invade your body. In a nutshell, be smart.

Can humans get worms from dogs? You bet. Is it embarrassing? Certainly it is. Can it be cured? Indeed, treatment is usually simple. Finally, can a worm infection from a dog be fatal? Yes. If you suspect that you have parasites, seek medical advice pronto.

Additional Resources

Top photo: Cordey/Flickr

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DISCLAIMER: Pets Adviser contains personal opinions and is not intended to diagnose, treat or give medical guidance. Consult a veterinarian, particularly in an emergency. [More Info]
  • http://cozypinkdogbed.com Seb

    You are absolutely correct. It happened to a friend of mine years ago. Another reason why people shouldn’t let their dogs like their faces. Someone I know kisses her dog on the mouth several times a day.

  • http://www.momswearyourtees.blogspot.com Scarlet

    I have heard that if you give your dog heart worm medicine, it takes care of other worms too and prevents this. Don’t know if that is true though. I would check with a vet!

    • Asia

      It’s not true, I have a dog with demodectic mange and have to give her a dose of Ivermectin everyday. Ivermectin is the main ingrediant in heart worm medications it says directly on the medications that it does not kill any other types of worms.

      • W. Lewis

        It depends on the dosage of ivermectin. It does kill some types of worms for sure, just might not for the dose you are using for the mange or heartworms.

        Always ask your vet the safe amount to use, as it is easy to overdose. Or contact the company, and they will tell you the exact details.

  • Dom

    It’s really disgusting. Absolutely, walking with bare feet on the ground may catch up different kinds of bacteria and things like that. Also, a person can get a serious disease from an animal if it is infected. Well, it’s different for me if a person kisses an animal in the lips.

  • http://www.mountainstatecanecorso.com Jason

    Our dogs and pups are treated with human grade Pyrantel designed for pinworms. I took it once with no problems.

  • Stefanie

    I was always told as long as your dog has its shots they will not have worms or give you worms. I know all my dogs were dewormed while they were puppies.

    • http://petsadviser.com Pets Adviser

      Stefanie, unfortunately not every pet owner gets his puppies dewormed. And you’re right… that’s when potential problems slither up.

    • Eric

      Deworming is not like a vaccination. If the animal ingests eggs, it will get worms. Being worm-free doesn’t ensure it will remain so. All your pet has to do is put something in its mouth (which they do constantly) with the eggs or larvae and there you go.

  • Louise Hudson

    Your dog should be de-wormed every six to eight months! It is not a case of worming your puppy once and never doing it again. At least twice a year it should be done with the best medication from your vet. DO NOT allow your dog/puppy to lick your or your children’s face.

    We have one dog and one cat, and both a de-wormed regularly.

    If you do notice worms in your dogs’ stools then buy them worming tablets immediately and repeat the process in six weeks’ time!

  • http://fundraisersonline.net Melissa

    Thankfully, the worst thing I’ve gotten from any of my fur babies is ringworm. Good advice, though! I can certainly see how easy it would be to get infected.

    • http://petsadviser.com Pets Adviser

      Hi Melissa,

      Well, ringworm is bad enough! And yes, you can get ringworm from dogs and cats. We’re going to add a new section to this article covering ringworm.

  • Ivan

    I just got a husky puppy that has been vomiting lately. Once, I saw what seemed to be a roundworm moving in the puppy’s vomit. No more worms have been vomited, and the puppy does not have diarrhea. The puppy continues vomiting but otherwise does not seem too sick. I am getting a deworming tablet today and planning to take it to the vet in 3 days.

    Before I knew the puppy had worms, it slept in my bed with me. How do I make sure I didn’t catch the worms?

    • http://petsadviser.com Pets Adviser

      Ivan, you should have your puppy seen by a veterinarian. You say he does not seem sick, but constant vomiting = sick in our opinion. Better safe than sorry.

      You probably didn’t catch worms by sleeping with the puppy. But, for purposes of information, some common symptoms of roundworms or hookworms in humans include: constipation or diarrhea, blood in the stool, gas/bloating, abdominal pain, weight loss, loss of appetite, skin rashes/allergies, shortness of breath, fatigue.

      Best of luck.

  • Leslie

    We recently got a puppy. Obviously she was carrying worms when we got her. It has been two weeks now, and she threw up an adult roundworm, had a pot belly, and then has been releasing roundworms through her bowels. We picked up a dewormer from the vet (Durvet 30mg). Now her bowel movements have small little white pieces in them. Can I assume that is the worm(s) that died and are now broken up?

    My main question follows. Of course this being a puppy, in all the excitement we have let her lick our face. I have kissed her face and nose, and even my son accidentally stepped in her feces. Now I am paranoid out the wazoo that we are carrying roundworm. How easy it is to pass around, and do I really need to go straight to the doctor and spend over $500 for all of us to be tested? I am worried out of my mind.

    • http://petsadviser.com Pets Adviser

      Hi Leslie,

      Not many things are ickier than imagining that there are worms inside our bodies, eating away at our innards. However, don’t be too freaked out here. It’s possible (well, puppies do lick their butts), but not very likely that you have roundworms from being licked by your infected puppy.

      Also, it’s our understanding that your son would not only have to have stepped in the poo, but touched it with his hands and then put his hands in his mouth. And the poo would have needed to be at least a couple weeks old, not fresh.

      Keep those hands washed. Clean up after your dog. And keep your dog treated regularly with a preventive.

      If you did have roundworms, by the way, you would *probably* develop fever, flu-like symptoms, stomach pain and possibly a cough.

      $500 for testing? If you’re really worried that you’re infected, have you looked into a low-cost health clinic? That said, peace of mind may be priceless.

    • W. LEWIS

      Hi, Leslie,

      I have a dog kennel, so lots of dogs come and go. Fostering, adoption, etc. Anyway, if money is an issue, go to KV Vet Supply online, and order a bottle of Pyrantel for about $16 and follow the instructions on the back of the bottle. It is actually for people and will kill roundworms and hookworms. The bottle says pinworms, but the vet told me about this wormer. It is stronger than the type in pet stores, so you take much less. Why pay for a test if you can worm your whole family for $16? Basically, I think an adult takes 3 spoonfuls and it actually tastes good, like banana! The bottle will last for many treatments.

      As far as for the dog, a different dose is required: 1ml per 20 lbs. of dog. You know for a fact what worm you are dealing with, and here is an easy “solution,” no pun intended, to your problem.

      In the catalog, there are many diluted versions of wormers all containing Pyrantal, so this is why I’m telling you to get this exact bottle for humans that kills pinworms. I think the bottle is 16 ounces. You can also call the pharmacy and get the same product, or at least info to confirm my statements. Forget about testing what you know could be possible.

      Remember, worm your dog more than once to kill what are now eggs that will turn into adult worms in 2-3 weeks. Just worm the dog every 2-3 weeks about 4 times and you should be fine, and re-do every 6 months. People are different, so don’t worm yourself again in 2-3 weeks unless a doctor tells you to. It explains this on the bottle. It will not hurt you or your dog, if any one doesn’t have worms, but you will have peace of mind!

      • Luvpuppeas

        OMG, I am relieved to hear that. I have been sick anyway for about two weeks (I have interstitial cystitis, which is incurable and when it worsens it causes “crisis,” which can be very debilitating).

        Anyway, while sick at home I cleaned up dog poop that was infested with actual worms; also I have had some embarrassing itching/discomfort and excessive saliva and indigestion. I haven’t been eating much, but there is one more thing: my regular meds keep me constipated and on stool softeners, but over the last two weeks they have not been working at all. I’ve been in terrible pain, but it is in the abdominal and pelvic area anyway with interstitial cystitis, so I don’t know if my condition has really worsened that much and caused more symptoms or if I also have worms.

        My anal area feels kind of moist no matter how much I dry it, and I have been feeling an itching in my throat as if something like lint or a hair were stuck. This has gone on for a long time too. I have three older dogs and one puppy that we found on Christmas Day that still needs the rest of its shots and hasn’t been wormed — in fact it’s past due for all of them to be wormed.

        It has felt a lot like appendicitis, but I have no appendix. I go to the doctor every 60 days and was there about three weeks ago, but obviously I don’t get tested for worms when I go. Whew what a mouthful. Any comments or advice?

        • http://petsadviser.com Pets Adviser

          Um… Wow. We appreciate you taking the time to leave this comment, but sadly we are not M.D.s and cannot offer health advice of that nature. We’d strongly urge you to talk with your doctor if you have a pain that is acute and feels like appendicitis.

          Best of luck, and let us know how things go at the doctor.

      • Deniserudd22

        My name is Denise I am going through the same fear as Leslie, I was so thankful to see this post. I am trying to order a bottle of the Pyrantel is this what your talking about? 

        Product Number: 20344

        Description:

        A double strength liquid wormer containing 4.54 mg pyrantel
        pamoate per ml. Controls both hookworms and large roundworms. Safe to use on
        puppies as young as 2 weeks of age, and on lactating bitches 2 weeks after
        whelping. Butterscotch flavor dogs love means no wasted product.
        Directions:Puppies 2 weeks of age or older and adult dogs give 1
        teaspoon per 10 pounds of body weight.

        View Larger
        Image

        To order 2 ounce size, click
        here.

        To order 8 ounce, click
        here.

  • S Apitz

    I want to give my dog the dewormer I purchased (Hartz). It says 5ml per 5 lbs., so I want to give my 60-pound Queenland’s heeler the whole 60ml bottle (2 oz). I cannot find on the packaging or online how often I should be giving this medication to my dog. It doesn’t say anywhere how often. Does anyone know?

    Thank you,
    Sue

    • Christahagoood

      Hey Sue

      I’m only speaking for myself, but with a little research online you might feel the same way. I do not use, and never will I use, Hartz no matter how bad the circumstance.

      I don’t even use toys or shampoos or anything, the reason being that they may be linked to cancer, especially the flea drops and wormers. Take heed with these products.

  • Luvpuppeas

    I wasn’t asking for any kind of medical advice, not at all. And I know everything I said is kind of shocking to hear from a complete stranger, but I really just wanted to know if I sounded crazy or if this sounds at all possible. You know, I just wanted a sounding board because it sounds so freaky. I want to know if it’s even possible or if it sounds like it could be in my head. I want to know how I sound to other objective, rational people.

  • Luvpuppeas

    My apologies for being so graphic. It’s just that I haven’t been able to share my possible theory with anyone, not even my wife, let alone my doctor. Iit sounds so crazy, and it’s disgusting too. So anyway, sorry if I was rude or inappropriate to share something so crude; I was sort of desperate.

    • http://petsadviser.com Pets Adviser

      No worries, Luvpuppeas! We don’t think you hurt anyone’s feelings. :)

      Maybe someone can offer some helpful comments. Best of luck to you.

  • HollyPuppy

    Hello, I recently learned my puppy has roundworms. My puppy had diarrhea today; I instantly recognized the roundworms in her stool. The two worms in the diarrhea were 6-7″ in length. I am sure glad we didn’t eat spaghetti tonight — that was my first choice for dinner!

    I kiss my puppy on the mouth every day. My puppy sticks her face straight up in the air and squints her eyes wanting kisses. I am sad that I will never do that again, although she keeps asking for her regular kisses. Does a human have to get tested for possible worm infestation, or can a person buy the medication and treat themselves?

  • newpuppymom

    I took my puppy to the vet today (she is 15weeks) and discovered she has roundworms. I am new at this whole puppy thing and concerned because I have 3 kids at home. The vet told me the possibility of the kids getting the worms and to make sure they wash good after touching the puppy. My question is, how long after the treatment do we need to continue to be “concerned” about the transfer of worms. This is our first family pet and I don’t want the kids to be hesitant to play and cuddle with her. I want this puppy to be loved on without the thought of catching worms from her.
    We are DEFINITELY going to get all her shots and do a preventative as often as our vet recommends. I guess I didn’t realize how easy and common it is for puppies to get worms.

  • Deniserudd22

    My little dog was very ill all day yesterday she was lethargic, dehydrated, with a fever, I took her in to the Vet Hosp. this morning to find out she has hook worms, low white blood cells causing anemia. she is having to stay in the hospital tonight I am afraid and curious if the chances are good that she will get better? I have two other dogs at home that may also be infected I purchased medicine for them as well from the vet, although they are not sick is it just a matter of time for them to also get weak and a fever?