Worms in Cats: Types, Symptoms, and Treatment Options

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As cat owners, we all want to keep our feline friends happy and healthy. However, when it comes to dealing with worms in cats, it can feel like a never-ending battle.

Roundworms, hookworms, and tapeworms are common parasites that can wreak havoc on your cat’s health, making it essential for you to understand how to prevent, identify, and treat these pesky invaders.

In this blog post, we’ll arm you with the knowledge you need to protect your furry companion from the discomfort and potential dangers of worm infestations.

black and white kitten on bed blanket

What Types of Worms Can Infect Cats?

There are three main types of worms that can infect cats, each causing different issues and requiring specific treatment approaches. Let’s take a quick look at these unwelcome guests:

  1. Roundworms (ascarids) – These are the most common intestinal parasites found in cats. They resemble spaghetti and can grow up to several inches long. Kittens often contract roundworms from their mother’s milk, while adult cats can get them from consuming infected prey or contaminated soil.
  2. Hookworms – These small, thin worms latch onto your cat’s intestinal lining, feeding on their blood. They can cause severe anemia and even death, especially in kittens. Cats usually contract hookworms through ingestion of contaminated soil or water or through direct skin penetration.
  3. Tapeworms – Long and flat, tapeworms are segmented parasites that can grow up to several feet in length. They attach to your cat’s intestines and absorb nutrients through their skin. Cats typically get tapeworms by ingesting an infected flea or consuming infected rodents.


There are other types of worms as well, such as Heartworms and Lungworms, but these fall into a slightly different category. Check out those linked guides for more info.

Now that we’ve identified the culprits, we can dive deeper into recognizing the signs of a worm infestation, understanding the potential health risks, and learning how to treat and prevent these parasites from making themselves at home in your cat’s body.

How to Recognize the Signs of a Worm Infestation in Your Cat?

Detecting worm infestations in your cat can be tricky, as the symptoms can vary depending on the type of worm and the severity of the infestation. However, there are some common signs to watch out for:

  • Weight loss or poor weight gain, despite a good appetite
  • Diarrhea or vomiting
  • Potbellied appearance, especially in kittens
  • Dull, rough coat
  • Lethargy or weakness
  • Visible worms in your cat’s feces, vomit, or around their anus

Remember, some cats may show no obvious signs of a worm infestation, so it’s essential to stay vigilant and maintain regular vet check-ups for the best preventive care. That’s why random fecal exams, at least annually, can be a cat owner’s best defense, catching infestations even when symptoms are stealthy.

What Are the Potential Health Risks Associated With Worms in Cats?

Worms can pose several health risks for your feline friend, with the severity of the issues often depending on the type of worm and the duration of the infestation. Some common health risks associated with worms in cats include:

  1. Nutrient deficiencies. Worms compete with your cat for vital nutrients, which can lead to malnutrition, weight loss, and a weakened immune system.
  2. Anemia. Hookworms, in particular, can cause anemia by feeding on your cat’s blood. Severe anemia can be life-threatening, especially for kittens and older cats.
  3. Intestinal blockages. A heavy roundworm infestation can lead to intestinal blockages, which can be potentially fatal if left untreated.
  4. Transmission to humans. Some types of worms, like roundworms and hookworms, can be transmitted to humans, causing various health issues. This is particularly concerning for young children, who may accidentally ingest contaminated soil or sand.

While these health risks might seem daunting, understanding how to treat and prevent worm infestations can help you protect your cat and ensure their well-being.

orange cat lying on the floor on the back

How Can You Treat Your Cat for Worms?

Effectively treating your cat for worms involves understanding the type of worm infestation and choosing the appropriate medication or method to eliminate them. 

It’s crucial to consult your veterinarian to ensure accurate diagnosis and treatment. Let’s explore some common ways to treat worms in cats.

Over-The-Counter Treatments

Over-the-counter (OTC) treatments can be a convenient and cost-effective option for treating certain worm infestations in cats. These medications usually come in the form of tablets, liquids, or spot-on treatments. Some popular OTC options include:

  1. Pyrantel pamoate: Effective against roundworms and hookworms
  2. Praziquantel: Effective against tapeworms

You can get both of these on Amazon (Pyrantel pamoate, and Praziquantel). Remember, it’s essential to follow the recommended dosage and administration guidelines to ensure the effectiveness of OTC treatments. 

Also, keep in mind that OTC treatments may not always be suitable for kittens, pregnant cats, or cats with underlying health issues, so it’s best to consult your vet before administering any medication.

Prescription Medications

In some cases, your vet may recommend prescription medications to treat your cat’s worm infestation.

Prescription medications are usually more potent than OTC treatments and may be required for severe infestations or when OTC treatments aren’t effective. Some common prescription medications include:

  1. Drontal: A broad-spectrum dewormer effective against roundworms, hookworms, and tapeworms
  2. Milbemax: Effective against roundworms, hookworms, and some species of tapeworms

Additional Supportive Care

During the treatment process, your vet may also recommend additional supportive care, such as dietary modifications, supplements, or probiotics, to help your cat recover more quickly and regain optimal health.

By working closely with your veterinarian and following their guidance, you can effectively treat your cat’s worm infestation and help them return to a healthy, happy state.

How to Keep Your Cat’s Environment Clean and Worm-Free?

Waging war against worms starts at home. Therefore, it’s crucial to have a clean and sanitary environment to prevent worm infestations.

Be proactive by scooping your cat’s litter box daily, thoroughly cleaning it with hot, soapy water at least once a week, and replacing the litter regularly. Additionally, keep your cat’s bedding, toys, and feeding dishes clean and sanitized.

For outdoor cats, limit access to potentially contaminated areas, such as garbage bins or places where other animals may defecate. Using preventive measures, like monthly worming medications, can be a game-changer, especially if your feline roams outdoors.

This will not only prevent worm infestations, but other parasites as well, such as ticks and fleas.

How Regular Vet Check-Ups Can Prevent Worm Infestations

Your vet is sort of like a personal bodyguard against worm infestations, and regular vet check-ups are crucial in detecting and preventing worm infestations in your cat.

Veterinarians can identify early signs of worm infestations, provide deworming treatments as needed, and offer tailored advice to keep your cat healthy.

By maintaining a consistent schedule of vet visits, you create a strong partnership with your vet to ensure your cat’s well-being and prevent health issues before they become severe.


How can I prevent worms in my cat?

To prevent worms in your cat, maintain a clean environment, administer regular preventive treatments as recommended by your vet, and schedule routine check-ups.

Are indoor cats at risk for worms?

Indoor cats are at a lower risk for worms compared to outdoor cats, but they can still be exposed through contaminated items or contact with other animals, so prevention measures are important.

Can worms be transmitted from cats to humans?

Yes, certain types of worms, such as roundworms and hookworms, can be transmitted from cats to humans, making it crucial to maintain good hygiene and follow preventive measures.

How often should I deworm my cat?

The frequency of deworming depends on factors like your cat’s age, lifestyle, and risk level. Consult your veterinarian for a personalized deworming schedule tailored to your cat’s needs.

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