How Do Cats Get Worms And Their Types? A Quick Overview

Looking out for the health and well-being of your feline family member is one of the most important parts of being a pet parent. Cats are lovable and lovely creatures. Several health-related conditions affect the overall performance of cats. Out of them, worm infestations are commonly seen in cats. Many cat owners ask a lot of questions about the Worms in cats such as:

How cats get worms?

What are the different types of feline worms?

How worms influence the normal life of cats?

How can we prevent worm infestations in cats?


In this article, we will discuss various feline worms and their causes in detail under the light of scientific literature.


Several worms affect the intestines and other parts of the cats. However, intestinal infestation is a very frequently occurring condition in cats. Remember, the most common worms in cats have been enlisted below:


1 Roundworm (Toxocara cati, Toxascaris leonina)

They are commonly found intestinal parasites in cats. Generally, it has been observed that roundworms are not detrimental for adult cats but can cause potentially harmful issues in kittens and older cats.

Size: huge-bodied worms, three-six inches length

Predilection site: Intestine. Remember, they freely swim in the intestine of the cat instead of

getting attached to the lining of the intestine.

Other names: Ascarids (The health condition caused by them is known as “Ascariasis).

Route of transmission: Trans-mammary (through the ingestion of contaminated milk).

Life cycle: Infected cat (eggs) – Paratenic host (temporary host)- Definitive host (eggs mature into adults)- adult worms pass eggs through feces

Chances of re-infection– Yes

Diagnosis &Treatment: Diagnosis is made upon the signs and symptoms along with

microscopic observation of larvae and eggs of roundworms. Use one of the highly effective dewormer ‘Worm eX. Follow a proper de-worming schedule in your kittens and pregnant cats as per the guidance of your family vet.


2 Tapeworms (Cestodes)

Tapeworms also cause health-related complications in cats. They enter the cats mostly

through the ingestion of fleas.

Size: Flat, long, segmented, white in color, Eight inches (adult worm).

Predilection site: Small intestine of cats. They attach with intestinal lining through their hook-like mouthparts.

Life cycle: Flea larva (ingest tapeworms’ egg) – development of eggs inside the larval flea- Cat feeds on flea during grooming- eggs hatch inside the intestine of cats- complete their life cycle- adult worms shed their segments through feces.

*Fleas are the intermediate host of the tapeworms.

Diagnosis & Treatment: Presence of worm segments in the feces and vomit of the infected

cat. A routine fecal examination can also help in the diagnosis of tapeworm infestation in cats. Make a strategy to control fleas and use highly effective de-wormer “WORM eX “to get rid of disgusting tapeworms.


3 Hookworms 

Hookworms are other important intestinal parasites of cats. The common hookworms which

are found in the cats are Ancylostoma brazilliense and Ancyclostoma tubaeforme.

Size: 1/8 inches, small worms, hook-like mouthparts, difficult to visualize with the naked eye.

Predilection site: Intestine

Life cycle: Female hook worm sheds eggs- Hatching of larvae in the soil- ingestion of larvae

by cats- Larvae establish infection in the intestine (penetrating the cat’s intestine by their

hook-like mouthparts) – Some larvae also enter in the windpipe (enter again in the GIT after

being coughed up by cats).

Route of transmission: Ingestion of larvae, from milk to kittens, prenatal infection (before

birth), Trans-placental transmission, etc.

Diagnosis &Treatment: Based on the bloody stool, poor hair coat, anemia (due to excessive

blood loss). Remember, anemia is a key sign of hookworm infestation. Plus, microscopic

identification of eggs can also help in a better diagnosis. Use a highly effective de-wormer

Worm eX”.

Note: Dog hookworms can also affect cats. But this is not so frequent.


4.Whipworms (Trichuris serrata)

Whipworm infection is not very much common in cats. But whipworms can infect a cat of

any age.

Size: Whip like shape, ¼ inch long.

Predilection site: Large intestine

Life cycle: Cat ingests eggs from the environment- eggs hatch in the intestine (three months)

adult worms reside

Treatment & diagnosis: Based on clinical signs and symptoms along with stool examination. Use highly effective de-wormer ‘Worm eX’ to get rid of these disgusting worms.

Other worms include Stomach worms (Physaloptera spp, Ollanulus tricuspus), Heartworms, lungworms, and protozoan parasites include Giardia, Toxoplasma which affect the overall health of your beloved furry friend.



Generally, it is hard to diagnose worm infestation in cats unless they show signs and symptoms. Moreover, some key signs and symptoms have been summarized below:

1 Vomiting

2 Diarrhea (may be bloody or mucoid)

3 Depression & dullness

4 Poor skin coat

5 Poor body condition

6 Skin lesion mostly seen due to external parasites

7 Reduction in body weight

8 Tarry feces and distended abdomen



There are many ways by which worms get entry into the cat’s body. However, some important sources have been given below:

1 From the living environment 



The environment is one of the biggest ways from which cats catch worms. Cats living area must be neat and clean. As the dirty environment carries various eggs and larvae of different worms which after getting entry into cats become mature (complete development cycles). This ultimately affects the overall performance of the cats. Being a responsible owner, this is your duty to ensure the proper cleanliness of the living area of your cat.

Note: This is important to ensure the proper cleanliness of the litter box of your cat. Additionally, infected cats pass the eggs and larvae of worms in the gardens and other places in the home through their feces. Ultimately, they can be easily entered into the cat body through the contaminated soil where they undergo all other developmental changes.


2 From the Fleas

Fleas harbor the larvae of several feline worms. They are considered as one of the major sources of transmission of worms in cats. According to research published in the Journal of Helminthology by Nelson, fleas are the important vectors that transmit many bacterial, rickettsial, and other filarial worms in cats. Usually, those cats which do excessive grooming are more susceptible to get larvae of worms through fleas.

Remember, not only fleas but lice have also been documented as the vectors of different worms.

Last but not least, fleas mostly carry the larvae of the tapeworms which after getting entry into the cat’s intestine complete their remaining stages of development.


3 From rodents 

Rodents are the potential carriers of various feline worms. Cats feeding on rodents (rats, mice) becomes infected with worms. However, lizards, birds, houseflies, and other small animals also harbor the larval stages of different round and tapeworms of the cat. So, cats can easily get by feeding on them.

Note: Larvae of the roundworms reside in the muscles of the infected rodents. As a cat eats a rat/mouse, the larvae infest the lining of the gastrointestinal tract of the cat and complete their maturation phases.


4 From infected nursing mothers

This is the very important route by which kittens catch the larvae of roundworms via milk. The infected mother passes the larvae to their kittens through milk. These larvae start multiplying in the gastrointestinal tract of the kittens and cause many complications in them. For instance, diarrhea, vomiting, poor hair coat, dullness, weight loss, and pot-bellied posture.


5 From other pets

If your cat is living in proximity to the other pets, then she can easily catch the worms. Infected dogs and cats pass out the eggs/larvae of the worms through their faces which contaminate the environment. After feeding on contaminated dirt/soil, the cat becomes infected with the worms.


6 Contaminated water and feed

Contaminated water and feeds are also the biggest sources of worm transmission in cats. For instance, whipworm infestation, Giardiasis, coccidiosis occurs in cats due to this route. This is your responsibility to offer clean drinking water along with safe feed to your cat.



Can indoor cats get worms?

 Yes, indoor cats are also susceptible to get worm infestations just like outdoor cats.

Why excessive groomer cats are at higher risk of getting worm infestations?

Because they ingest fleas which harbor larvae of worms. After ingesting the fleas, larvae develop in the intestine of the cats and establish infection there.

How my cat can get worms?

There are so many ways by which cats get worm infestations such as contaminated water, soil, food, matter, infected pets, infected rodents, birds, small animals, houseflies, and infected mothers (kittens through breastfeeding).

What are commonly found worms in cats?

Many worms infect cats such as roundworms, tapeworms, hookworms, whipworms, and some non-intestinal worms such as bladder worms, lungworms, liver flukes, and heartworms.

What are the important protozoan parasites which affect cats?

The most important protozoan parasites are coccidia, giardia, and Toxocara. These parasites cause a variety of signs and symptoms in cats.

 How a nursing cat can infect her kittens?

 Infected nursing cats can pass infective larvae of roundworms to their kittens via milk. So, pregnant cats should be gone through de-worming before and after pregnancy only under the supervision of an expert vet.

How Worm eX eliminates all worms & pathogenic bacteria?

 Worm eX is a wonderful de-wormer that gives 100% guaranteed results in eliminating all worms and pathogenic bacteria from your beloved furry friend. It particularly damages the parasites by not affecting the normal cells of the body. Additionally, this magical and unique formula does not harm the beneficial microbiota of your cat’s intestine.

Why should I choose Worm eX?

 Because it is all-natural with no additives. It effectively destroys all the pathogenic worms and bacteria. There are no side effects of this product on the normal cells and other vital organs of the cat’s body such as the liver and kidneys. Shortly, it is organic and highly safe to use in cats.

Can Worm eX kill all worms?

 Yes, this is an excellent de-wormer that effectively kills roundworms, tapeworms, whipworms, coccidia, ear mites, and other intestinal parasites.




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