
As an indoor cat owner, it's natural to assume your feline friend is completely safe from parasites. However, indoor cats can still get parasites, and it's essential to know how to prevent them.
Some common parasites that can affect indoor cats include fleas, ticks, and mites. These tiny critters can hitch a ride into your home on your clothing, furniture, or even on other pets.
Fleas, in particular, can be a significant problem for indoor cats. According to research, fleas can be found in up to 25% of homes, and they can cause discomfort, allergic reactions, and even transmit diseases like typhus and tapeworms.
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Can Indoor Cats Get Parasites?
Indoor cats can get worms, and it's not just limited to those that venture outside. Unfortunately, even indoor cats are at risk for intestinal parasites.
Tapeworms and roundworms are two types of worms that indoor cats can get. These worms can cause a range of health problems, from mild discomfort to serious illness.
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It's essential to familiarize yourself with the types of worms your indoor cat could get. This knowledge will help you take preventive measures and ensure your cat receives the necessary treatment if they do contract a worm.
Intestinal parasites like tapeworms and roundworms can be treated with medication. However, it's crucial to follow the treatment plan provided by your veterinarian to ensure your cat's complete recovery.
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Symptoms and Diagnosis
If your cat has intestinal parasites, you might notice a few key symptoms. Tapeworm segments can appear in your cat's poop, around their bottom, or in their bedding, looking like grains of rice.
One of the most common signs is weight loss, which can be a cause for concern. Your cat might also start eating more than usual.
Other symptoms include an itchy bottom, diarrhea, and in severe cases, a rounded potbelly in kittens.
Signs and Symptoms of Infection
If your cat has intestinal worms, you may not notice it at first, but there are some common signs to look out for. These can include tapeworm segments in your cat's poop, around their bottom, or in their bedding, which can look like grains of rice.

Weight loss is another possible symptom, as intestinal worms consume some of the nutrition intended for your cat. This can also lead to eating more than usual, as your cat tries to compensate for the lost nutrients.
An itchy bottom is another sign that your cat may have intestinal worms. This can be uncomfortable for your cat and may cause them to scratch or lick the area excessively.
Diarrhea is another symptom of intestinal worms in cats. Kittens with a severe infestation can also develop a rounded potbelly.
Here are some of the main signs and symptoms of intestinal worms in cats:
- Tapeworm segments in poop or bedding
- Weight loss
- Eating more than usual
- Itchy bottom
- Diarrhea
- Rounded potbelly in kittens
Veterinarian Parasite Diagnosis
A veterinarian will typically ask for a fecal sample that can be examined under a microscope for the presence of parasite eggs. This is a crucial step in diagnosing intestinal parasites in your cat.
Symptoms of intestinal worms in cats can be subtle, but common signs to look out for include tapeworm segments in your cat’s poop, around their bottom, or in their bedding. These segments can look like grains of rice.
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Kittens with a severe infestation can get a rounded potbelly, and may experience weight loss, eating more, itchy bottom, and diarrhea.
Veterinarians can also identify tapeworms, which can be seen as small moving grains of rice in your cat's stools. However, most of the time, worms are microscopic and need to be examined under a microscope.
A veterinarian can identify 23 different gastrointestinal parasites, including Cystoisospora species, Toxocara cati, Giardia species, and others. These parasites can be found in cats of all ages, including those that are "indoor only".
Bite-Borne Diseases
Fleas are a common vector for transmitting diseases to cats, and it's essential to understand the risks they pose.
A single flea can transmit more than one disease to your cat.
Some pathogens transmitted by fleas include Bartonella henselae, Rickettsia felis, and Rickettsia typhi.
These diseases can cause a range of symptoms in cats, from mild to severe.
Flea-borne diseases can be particularly problematic for young or immune-compromised cats.
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Prevention and Treatment
Regular worming treatment is key to keeping your indoor cat healthy. Regularly worming your cat is the best way to kill any worms they may have.
Some treatments available 'off the shelf' are not as effective and may not completely treat the infestation. Your vet will be able to advise which treatments are most suitable depending on the types of worms found where you live and what treatments best suit your cat’s lifestyle.
Make sure you keep up with regular worming treatment and clean any poop out of your cat’s litter tray to avoid reinfection with any worm eggs in your cat’s faeces. If they have recently had worms, wash their bedding on a high temperature to kill any eggs that may be in it.
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How Animals Get Parasites
Cats can pick up worms from eating prey such as birds or mice. This is a common way for cats to become infected.
Cats can also get worms from having fleas that carry worm larvae. I've seen it happen in my own backyard where fleas are rampant.
Cats can even get worms from their mother's milk as kittens. This is why it's essential to get your cat vaccinated and dewormed early on.
Birds and other small animals can carry worms that can infect cats if they're eaten. So, keep your cat indoors if you live in an area with a lot of wildlife.
Fleas are notorious for carrying worm larvae, which can lead to a cat getting worms. If you have a cat, make sure to regularly check for fleas and take steps to prevent them.
Kittens can get worms from their mother's milk, but adult cats can also get worms from eating infected prey. This is why it's crucial to keep your cat's environment clean and free of potential worm sources.
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Conditions and Treatments
If your cat has intestinal parasites, they may show signs like vomiting, diarrhea, and weight loss.

These symptoms can be caused by worms such as tapeworms, roundworms, and hookworms.
Some types of tapeworm are passed to your cat through fleas, so regular flea treatment is essential.
The treatment for intestinal parasites usually involves dewormers, which can be applied to the base of your cat's neck or given orally.
A monthly topical treatment like Advantage Multi can prevent heartworm disease and treat fleas, roundworms, hookworms, and ear mites.
Your veterinarian will typically ask for a fecal sample to diagnose intestinal parasites in your cat.
In severe cases, intestinal parasites can even lead to death, so it's crucial to catch the problem early.
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Cleaning House with Infected Cat
If your cat has worms, it's essential to thoroughly clean your house to prevent the spread of eggs and reinfection. Intestinal parasites consume some of the nutrition intended for the cat, resulting in weight loss, vomiting, diarrhea, and overall health deterioration.
You should start by thoroughly cleaning all of your cat's bedding on a hot wash and any other blankets or sheets they may have touched. This is crucial because worm eggs can survive for a long time outside of a host.
Carpets can be steam cleaned to kill off any remaining eggs, and hard floors can be treated with an antibacterial cleaner or a mild bleach solution to make sure any eggs are killed. Always rinse chemical cleaners thoroughly and air the room before letting your cat back in.
It's also important to completely clear your cat's litter tray and give it a deep clean with hot soapy water. You can also throw boiling water on any areas outside they may have gone to the toilet to kill off any eggs, but be careful not to harm plants or grass.
Here's a quick rundown of the cleaning tasks you should prioritize:
- Hot wash all bedding and blankets
- Steam clean carpets
- Treat hard floors with antibacterial cleaner or mild bleach solution
- Deep clean the litter tray with hot soapy water
- Disinfect areas outside where your cat may have gone to the toilet
By following these steps, you can help prevent the spread of worms and keep your cat healthy and happy.
Parasites and Cat Health
Parasites can be a significant threat to your cat's health, even if they're indoors. As many as 45% of cats experience gastrointestinal parasitism.
Intestinal parasites can consume some of the nutrition intended for the cat, leading to weight loss, vomiting, diarrhea, and overall health deterioration. This can be a serious issue if left unchecked.
Some common internal parasites found in cats include Cystoisospora species, Toxocara cati, Giardia species, and others, with a prevalence rate increasing over time.
Parasites and Cat Health
Up to 45% of cats experience gastrointestinal parasitism, according to the Cornell Feline Health Center and American Association of Feline Practitioners.
Cats can get a variety of gastrointestinal parasites, including Cystoisospora species, Toxocara cati, Giardia species, and more.
These parasites can cause weight loss, vomiting, diarrhea, and overall health deterioration in cats.
Intestinal parasites consume some of the nutrition intended for the cat, leading to malnutrition and health problems.
A monthly heartworm preventative that contains a dewormer can help prevent intestinal parasites in cats.
Even indoor cats can get intestinal parasites if their litter box is not kept clean.
If your cat is outdoor, they should be dewormed once monthly to prevent parasite infestations.
Up to 80% of fleas found on cats test positive for at least one disease pathogen transmittable to cats, including Anaplasma, Bartonella, and Rickettsia species.
Ticks are also a common problem for cats, with every U.S. state having some species of tick present.
Heartworm Disease
Heartworm disease is a serious threat to cat health, and it's essential to understand the risks. Approximately 1 in 200 cats across all 50 US states is infected with heartworms each year.
Cats are not the preferred host for heartworms, and most worms don't mature to the adult stage in cats. However, even a few adult worms can be life-threatening.
Heartworm disease in cats manifests differently than in dogs and is more challenging to detect. Cats often have subclinical heartworm infections.
Fatigue, anorexia, weight loss, and emesis (vomiting) are common clinical signs of heartworm disease in cats. In the early stages, cats may show signs that resemble allergic or respiratory disease.
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Coughing, wheezing, dyspnea, or tachypnea are signs of a syndrome named "heartworm-associated respiratory disease" or HARD. In some cats, the first sign of heartworm infection may be sudden death.
Prevention is key to protecting your cat from heartworm disease. Successful prevention requires client education, and it's essential to understand the risks, especially for indoor cats that are not on preventives.
Other Pets
If you have other pets, such as another cat or a dog, it's possible they could get worms too if your cat has them.
You should make sure to treat all animals in your house for worms regularly.
Don't use dog worm treatments on cats and vice versa.
Ask your vet for the correct treatment for each pet.
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Other Considerations
Indoor cats can still get parasites, but it's less common than outdoor cats. Fleas and ticks are often the culprits, as they can hitch a ride into your home on your clothes or luggage.
Flea infestations can lead to tapeworms, which are a type of parasite that can cause digestive issues in cats. Tapeworms can also be transmitted to humans, so it's essential to treat your cat promptly.
Some parasites, like fleas and ticks, can be brought into your home on your clothes or luggage after spending time outdoors. Regularly washing and drying your clothes, especially after hiking or spending time in areas with high parasite activity, can help prevent this.
Cats can also get parasites from other cats, even if they're indoors. If you have multiple cats, it's crucial to keep them up-to-date on their parasite control medication to prevent the spread of parasites.
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Kittens and Parasites
Kittens can get worms, especially if their mother already has them, and roundworm can pass through a mother’s milk to her kittens.
It's essential to regularly treat your cat for worms, especially if she's pregnant, and to check with your vet before treating a pregnant cat to ensure you're giving her a safe product.
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Kittens can be treated for worms from three weeks old, and your vet will recommend the best product for your kitten.
From six weeks old, healthy kittens usually have a monthly treatment against roundworms, and from six months old, they can have roundworm and tapeworm treatments every three months.
You should always weigh your kitten before worming treatment to ensure they receive the correct dosage.
Up to 45% of cats experience gastrointestinal parasitism, and as many as 45% of cats experience gastrointestinal parasitism, according to the Cornell Feline Health Center and American Association of Feline Practitioners.
All U.S. states have some species of tick, and every U.S. state has heartworm disease, which is a significant concern for kittens and adult cats alike.
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Medications and Products
Profender is a single-dose topical solution for the treatment and control of hookworm, roundworm, and tapeworm infections in cats and kittens.
It's available with a veterinarian's prescription, which is a good idea since parasites can be tricky to diagnose and treat on your own.
Profender Topical Solution is a convenient and effective way to keep your indoor cat parasite-free, especially if you live in an area with a high parasite prevalence.
Profender contains a combination of emodepside and praziquantel, which are active ingredients that target and eliminate parasites.
Elanco is the company behind Profender, and they also manufacture other popular pet medications like Advantage Multi.
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