Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Hookworms in Cats: Vet Reviewed Causes, Signs & Care

Share

Abyssinian cat check by vet

Your cat has just been diagnosed with hookworms, and you’re curious about where they got them, how you are supposed to care for your cat, and how to prevent them from getting hookworms again in the future. Well, hookworms are one of the more common types of intestinal parasites that your cat might develop. They disrupt a cat’s digestive system by invading its small intestine, and we’ll look at exactly how they do that below.

divider cat faces oct 2024

What Are Hookworms?

Hookworms are intestinal parasites named after the hook-like mouthpart that they use to attach themselves to the lining of the intestinal wall, where they feed on their host’s blood and tissue fluids. They’re about 1/8 inch long and so small in diameter that you can barely make them out with the naked eye. They can cause damage to the area of the intestine where they settle and feed and release a blood-thinning compound that could cause bleeding in your cat’s gastrointestinal tract.

sick cat with feline disease sitting on the floor
Image Credit: Kittima05, Shutterstock

What Are the Signs of Hookworms in Cats?

Several signs indicate your cat has hookworms, including a black tarry stool, which indicates digested blood in the stool, poor hair coat quality, and weight loss. Cats can experience blood loss from the feeding and continued bleeding in the bowel from the hookworm’s attachment sites. This could lead to anemia, which is more common in kittens. You might find your cat has itching and skin irritation, especially on their paws or where the hookworm has entered the skin.

If your pet is showing these signs, we suggest you speak to a vet.

What Are the Causes of Hookworm in Cats?

Hookworms thrive in warm, moist environments and also environments with poor sanitation and overcrowding.

A cat can become infected with hookworms in many ways. They may ingest them by eating vertebrates like rodents or even by eating cockroaches that happen to be carrying hookworm larvae. Kittens can also get them through their mother’s milk.

Hookworms can be passed from one cat’s stool to another through ingestion. Female hookworms will pass on hundreds of microscopic eggs in a cat’s stool, where the larvae will hatch from eggs and stay alive in the soil for weeks or even months. A cat might then inadvertently swallow the larvae by grooming its paws, for example. Most larvae will then move to the intestinal tract and stay there.

Larvae can also burrow into the skin and migrate to the trachea and lungs, where they are then coughed up and swallowed. From there, they make their way to the intestinal tract. It takes around 2–3 weeks for a female to produce eggs.

cat nursing kittens outside
Image Credit: Flower_Garden, Shutterstock

How Do I Care for a Cat With Hookworms?

You’ll be relieved to know that the treatment for hookworms is simple, safe, and relatively inexpensive. After the deworming medication has been administered, the adult hookworms will be killed. This is usually done using an anthelmintic, but the problem is that most don’t kill the larval stages, so your cat will need at least two treatments given at 2- to 3-week intervals.

Your cat should then make a full recovery. In very rare cases where a cat has suffered from severe anemia, they will need a blood transfusion. Extensive treatments are usually necessary in this case, but this is a very rare example.

You can take some measures to ensure your cat doesn’t become reinfected while recovering and lessen the chances of them getting hookworms in the future.

  • Keep clean: Bodily fluids and fecal matter are common sources of parasites, and once your cat has been dewormed, a good way to prevent future infestations is to keep their living area and litter box clean. Also, make sure you are washing your hands after handling cat feces.
  • Strict hygiene, especially for children: You should protect your children from potentially contaminated areas. Be mindful of public places like open sandboxes or beaches, for example, and if you have a sandbox in your yard, invest in a fitted cover to prevent the infection of children.
  • Stay up to date: Speak to your vet about which medication is right for your cat since monthly medications have been proven to prevent some types of parasites. Also, make sure you are taking your cat for fecal exams. Adult cats should have these once or twice a year to check for parasites. Even if your pet is an indoor cat, they still are at risk of catching hookworms.
  • Get your kittens treated: Kittens at risk can be treated with a vet-approved anthelmintic as young as 2 weeks old. Your vet will come up with a schedule to ensure the life cycle of the most common intestinal parasite is effectively broken.

divider cat faces oct 2024

Frequently Asked Questions

Can Indoor Cats Get Hookworms?

Indoor cats can be exposed to carriers like cockroaches and rodents and still get hookworms. It’s also possible for people to track parasites into your house on their belongings and shoes.

grey cat hunting mouse
Image Credit: Stefan_Sutka, Shutterstock

Can Humans Get Hookworms From Cats?

While feline hookworms might not affect humans in the same way, they can cause a disease known as cutaneous larva migrans or “ground itch,” which is a migration of hookworms into the human skin.

divider cat faces oct 2024

Conclusion

It’s always worrying when something is wrong with our pet, but thankfully, hookworms are relatively easy to treat. You can also take precautions to lower the risk of your cat getting them again. On very rare occasions, complications like anemia can arise, and the prognosis for these cats isn’t as favorable, which is why it’s essential to look out for those signs and get your cat to the vet as soon as possible for treatment!


Featured Image Credit: Libre, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

When a Cat Becomes a Water Fountain – Why Cats Vomit After Drinking

Seeing a cat drink water and then promptly bring it back up can be confusing. Sometimes the explanation is fairly simple, particularly if...

Chatting About Sleeping Positions, Loafing & Cats in Tubes | Chatty Cattys, Episode 33

In this episode of Catster’s Chatty Cattys podcast, Dr. Karyn and Nicole dive deep into the fascinating world of feline sleep behaviors. From...

The Bite Stuff: The Truth Behind a Cat’s Sudden Nip

A cat bite that seems to come out of nowhere is one of the more confusing things a cat owner deals with. Everything...

Your Cat’s Purr Proves They’re One of a Kind

There are few sounds more comforting to a cat parent than the familiar rumble of a purring cat. You probably know your own...

More related

Does Salt Kill Fleas on Cats? Vet Reviewed Effectiveness & Safety

A flea infestation can really ruin your week. Not only are fleas a nuisance for your cat, but they can also be a...

Why Is My Cat Running Sideways? 7 Vet-Reviewed Reasons

Cats are fascinating pets and behind their every action, there is a myriad of reasons and impulses driving them. Cat’s sideways movement, often...

Keeping Cats Safe in Summer: 7 Tips That Don’t Just Involve the Heat

When it comes to summertime, many people focus on the heat. There are plenty of resources about how to keep a cat cool...

KatKin Fresh Cat Food Review 2026: Our Vet’s Opinion

Gone are the days of cracking open a tin of budget-brand cat food and hoping for the best. In these modern times where...

Keep reading

5 Best Litter for Cats with Asthma in 2026 – Reviews & Top Picks

It can be tough to parent a cat with asthma, particularly because of cat litter. The tiny particles and dust that get kicked up when a cat litter box is being cleaned can really affect asthma-suffering cats. Many people therefore...

kitten in the litter box

Can Cats Eat Honeydew? Vet-Reviewed Facts & FAQ

When you think of cat treats, fruit might not be at the top of your list. Cats are obligate carnivores; they get pretty much all their nutrition from meat. But cats are known to be curious about plant foods, and...

Can Cats Eat Honeydew

What Are Cat Paws Made Of? 5 Vet-Reviewed Facts & FAQ

Cats’ paws are incredible and are used for a host of different things. Paws help with balance and carrying the load of the cat, and they also provide protection, offer grip, and even dissipate energy, which is how cats can...

close up paws of orange cat

Can Cats Drink Vegetable Oil? Vet-Approved Diet Facts & FAQ

Cats are curious creatures that like to put their noses, mouths, and paws everywhere. Moreover, cat parents who cook a lot know how difficult it is to keep their feline’s inquisitive nose out of their kitchen! But if your cat...

Can Cats Drink Vegetable Oil

Do I Need to Put My Cat on a Liquid Diet? Vet-Approved Info & Guide

In most cases, cats will thrive on eating regular cat food throughout their entire lives. There are four main diets for cats that people are familiar with: dry, wet, semi-moist, and raw. Dry and raw diets are at opposite ends...

feeding cat using syringe

Simply Nourish Cat Food Review of 2026: Recalls, Pros & Cons

Review Summary Simply Nourish is a PetSmart brand, sold exclusively at PetSmart, at least officially. It’s a healthier alternative to commercial pet foods that are made with fillers and non-natural ingredients. Likewise, it’s marketed as the more affordable alternative to...

Simply Nourish Cat Food Review

4 Everyday Noises That May Be Scaring Your Cat

While thunder and fireworks can surely terrify Fido, can these noises scar your cat? There are many everyday sounds that felines find disturbing and are the cat equivalent of fingernails being drawn across a chalkboard. But what noises could be...

scared kitten hiding

Can Cats Eat Tuna? Vet-Reviewed Nutrition Facts & FAQ

Tuna is one of the human foods most offered to cats, either as a treat or part of their daily diet. However, just because your cat loves tuna doesn’t mean it’s healthy or safe for them. Cats shouldn’t eat tuna...

Can Cats Eat Tuna

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.