With a hook-shaped mouth giving them their name, hookworms are highly contagious intestinal blood-sucking worms that adult dogs and puppies frequently get. There are several species of hookworms in dogs, including Ancylostoma caninum, Uncinaria stenocephala and Ancylostoma braziliense, to name the more common species found in the intestines of our beloved pups. Read on to learn the answer to "How do dogs get hookworms?" as well as how to protect your dog from this parasite.
Dogs of all life stages are vulnerable to hookworms, and there are four ways dogs can get them:
Many dog parents are shocked when their veterinarian finds hookworms during routine fecal exams, but this isn't uncommon as many dogs infected with the parasite don't exhibit clinical signs. Sometimes, you may notice your dog itching, or you might see a rash on their paws because hookworms cause discomfort when they burrow into the skin. If your pup is a paw chewer, this behavior may not initially spark your attention.
Other common signs affect the gastrointestinal tract but may also include:
Pale gums are a result of anemia that can develop as the hookworms ingest blood in the intestines. Failure to thrive is common among puppies with hookworms.
You bet. Certain diseases, including hookworms, are considered "zoonotic" because they can spread from animals to people. Hookworm larvae are notorious for burrowing into the soles of people's feet, as the New York Post mentioned. It's also possible for a dog to spread hookworms to you by licking or kissing you on the mouth when they have the parasite in their mouth. On rare occasions, the larvae can migrate through tissue in the human body and cause something called "larva migrans." This condition can cause damage to the internal organs and has been linked to many cases of blindness, especially in children.
Lucky for us, the adult form of the hookworm doesn't infect humans and will die within a few weeks when inside of us. However, hookworm infections are on the rise — up 47% from 2012 to 2018, according to a study cited by Veterinary Practice News.
Diagnosing hookworms in dogs is usually straightforward, involving taking a stool sample and examining a microscopic slide for the presence of hookworm eggs. Eggs aren't guaranteed to always be present as they can shed intermittently. As a result, more than one fecal exam may be essential for diagnosis. Because hookworms don't always cause signs of physical illness, your dog should have fecal exams twice a year.
Several different kinds of medication, called anthelmintics, can effectively treat hookworms. Injectable and oral forms of medications are available as well. Your vet will be able to determine which would be best for your dog. For dogs with severe hookworm infestations, additional treatments may be needed. For instance, dogs who have developed anemia will need to have their blood cell count monitored. They can even require a blood transfusion, though puppies tend to be most at risk for this severe anemia.
Heartworm preventative medication will prevent a dog from getting a hookworm infection, and depending on the product, it may or may not help with an existing infection. Because of this and the frequency of intestinal parasites seen in dogs, routine dewormings are recommended for all dogs. Talk to your vet about any concerns you may have regarding your dog and hookworms. Keep in mind that if you follow best practices for checkups and preventative care, your pup should stay happy and healthy.
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