What to Expect after Deworming a Cat? It’s a tough question.

When raising a cat, one thing you should pay attention to is that your cat may have worms. Cat worms affect your cat’s health, but it can also infect you as well as other pets. Therefore, it is crucial to deworming cats regularly.

However, the question that people are often wondering is: What to expect after deworming a cat?

We will help you to answer that query today. But first, let’s take a look and get some ideas at the necessary things.

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What are the types of worms, and how can your cat get them?

what to expect after deworming a cat
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There are many types of worm with different sizes and shapes; however, the most popular ones are roundworms, hookworms, tapeworms, and heartworms.

Roundworms and hookworms can be found in the intestines, while tapeworms live in the intestines as well as other organs, such as the liver. On the other hand, heartworms, which are brought by mosquitoes, live in the heart, and is quite dangerous since it can cause death  (Rabinowitz, Gordon, & Odofin, 2007)

Most people don’t know that intestinal worms exist in kittens’ bodies before they are even born. These worms are passed onto the kittens from the mother’s body or milk.

Eggs or infected parts in feces is also a reason for worms in cats. They come in contact with the feces and bring parasites into the body when grooming themselves.

Also, cats can ingest worms through hunting and eating rodents or fleas that carry worm eggs. Moreover, being bitten by worm larvae can cause the infection as well (Beugnet et al., 2014).

How to identify whether your cat has worms?

Although some cats will show a lot of visible signs, some will not have any noticeable symptoms. If you observe your cat and notice that it has these symptoms below, please take your cat to the vet right away.

  • Unknown weight loss with a change of appetite
  • Bloated stomach or swollen abdomen
  • Lethargy
  • Vomiting
  • Diarrhea
  • Coughing constantly
  • Breathing difficulty
  • Coarse or dull fur
  • Rubbing or dragging their bottoms across the ground
  • Visible traces of worms in cats’ skin/fur around the stool area or in their feces. (Baneth et al., 2016) 

When should you deworm your cat?

Deworming your cat at a young age is truly necessary. A kitten should be dewormed at the age of 4, 6, and 8 weeks, and the treatment should be repeated when kittens reach the age of 4 and 6 months.

Despite being less affected by worms, adult cats still need to be dewormed every 2 to 6 months. The schedule depends on the situation and habit of each cat, so it is recommended to consult with your vet for personalized advice.

What to expect after deworming a cat?

One thing that you must do after deworming your cat is to observe your cat’s situation carefully. Treating for worms is essential, but you should keep in mind that dewormers are still toxic chemicals; therefore, your cat might suffer the side effects within 24 hours after treatment.

Side effects which are commonly seen in cats are:

Vomit

Your cat’s stomach will go through a lot of things when it is in the deworming process. The effect of medication and the parasites going through the digestive system causes vomiting in cats.

You should immediately bring your cat to the veterinarian in case the cat has this symptom within an hour of taking the medication since your cat may suffer from dehydration.

Loss of Appetite

Due to the strength of dewormer medications, the appetite of your cat may decrease of it may even give up eating until the medication finishes dealing with the worms. If you see that your cat keeps having this symptom for more than 3 or 4 days, please contact your veterinarian for assistance as your cat may need another treatment to get its appetite back.

Diarrhea

Another side effect that your cat may have is diarrhea. You may also notice the signs of worms or worm segments in your cat’s stool or feces. This often causes worry for cats’ owners; however, this is not a problem to be scared of since it is just how a cat’s body fights off and gets rid of the parasites.

On the other hand, bloody stool may occur to your cat as well. Nevertheless, these symptoms should only last for only two to three days. In case they happen for a more extended period than that, you should seek help from the veterinarian.

Increased Salivation

Increased salivation is a common symptom that your cat may suffer from after a deworming. Anyway, similar to the above ones, this side effect should only last from two to three days. Contact the vet immediately if your cat starts foaming at the mouth rather than salivating. It could go through more severe conditions, like, rabies.

Besides all mentioned side effects, other symptoms that can happen to a cat are lethargy, non-alertness, or white gums.

How to prevent your cat from being infected by worms?

You can refer to below suggestions to decrease the risk of worms in your cat:

  • Give treatments to kittens at their young ages.
  • Provide your monthly cat worms preventive medication as consulted with the vet.
  • Keep an eye on your cat so that you can identify the symptoms and deworm your cat in a timely manner.
  • Clean your cat’s litter box daily.
  • Keep your house clean, especially the backyard.
  • Consider keeping your cat indoors frequently as it will reduce the chance that your cat will get an infection from feces of other infected cats, fleas or rodents.
  • When you bring your cat to public places, such as playgrounds or parks, remember to dispose of feces immediately with sanitary tools  (Dryden & Payne, 2005). 

Check out: Raw diet for cats

FAQ about deworming cats

1. Why do we need to deworm cats?

This is the origin of all the stories we are discussing in this article. Taking care of pets, including cats, is a job that requires a lot of work. And each stage plays a different role. Deworming is very important if you want your cat to be in good health and grow healthy.


Cats are very susceptible to the types of helminths such as hookworms, pinworms, threadworms, tapeworms, etc. These worms live inside the animal’s body, causing intestinal and digestive diseases such as respiratory, vomiting, loss of appetite, weight loss, weakness, or even death.

It is not only dangerous for cats but also the risk of transmitting the infection to humans and other pets when handled without treatment.

Therefore, it is necessary to conduct the periodic inspection and deworming for cats to eliminate the parasitic worm problems in them.

2. Can cats become infected with helminths after being dewormed?

It sounds complicated, but in fact, this is entirely possible. The helminthicides are very powerful and help to eliminate the helminths after one use. But as analyzed above, there are many possible causes for this problem in cats, one of which is their living habits.


Thus, if they do not change their living habits (for example, stay away from contaminants), the risk of catching helminthiasis after being treated is very high.

3. What to note before deworming cats?

* Give cats a half-day fast before deworming

Usually, you should cut your cat food in the evening by half. Then until the next morning, after cats wake up enough for a long time, you give cats deworming medicine is the most reasonable.
You can insert the medication directly into a cat’s mouth. Or, blend it into a delicious food (like a pate) to lure your cat.
Note: Give cats deworming books with a sufficient amount of medicine according to the directions on the medicine label. If you give your cat an overdose, it will lead to a cat drug shock, a tired person, stop eating, which can lead to illness.

* Mix more digestive enzymes into food

If your cat does not have an excellent digestive tract, you can mix it with yeast to feed the cat after deworming. Because of a new worm book, you should not feed your cat a lot, but only a small amount (half a serving, for example). The next day, let them eat and drink regularly.

* Wrap your cat up

When cats use the medicine, they can struggle, scratch, squirm, and be uncomfortable. You can wrap your cat in a small blanket or towel and leave only the cat’s head outside.

4. How should deworming for kittens be scheduled?

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Worms have a strong effect on the cat’s digestive system, especially kittens, because they generally have a weak internal organ system. As such, ensuring a proper deworming schedule for your cat from an early age is also a way to better protect your furry friend’s health.

Depending on each stage of the cat’s development, the deworming schedule for them will be adjusted accordingly.

  • When the cat reaches 3 – 8 weeks of age: conduct worms every 2 weeks. When the cat is 3 weeks old: 1st lump. Repeat when the cat is 5 and 7 weeks old.
  • When cats reach 2 – 6 months of age: perform worms once a month. That is, after the worm cast when they are 7 weeks old, exactly 1 month after you do the fourth worm. Repeat monthly until they are 6 months old.
  • When cats reach 6 – 12 months of age: Every 2-3 months throwing worms 1 time. So from the injection at 6 months of age, until they are 8 months, 10 months, and 12 months worms.
  • When cats reach 1 year of age or older: 1 worm drop every 6 months until the end of the cat’s life cycle (Day, Horzinek, Schultz, & Squires, 2016). 

5. How easily are cats infected with helminths?

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Some cats are born to explore and explore, but others like to spend time at home behind the door. If they do not roll around in the garden, play with mice or interact with other animals, then the question is: do you need to care about parasites? Sadly, even cats who are well cared for in the best environment can still be infected with worms.

Still the quest of What to Expect after Deworming a Cat remains.

If your cat does not like to explore the outside world, you don’t need to worry about parasites, of course, that’s understandable! However, parasites are everywhere, even if cats just like to spend all day on the sofa can still be infected with tapeworms.

Cats that regularly stay at home are still at risk of tapeworm infection. Tapeworms have a long flat shape and divide into segments. They parasitize in the host’s small intestine. Cats are highly susceptible to tapeworms, most commonly swallowing fleas containing tapeworm larvae. Fleas are ubiquitous. They can hide in your clothes, the pet’s body, or any pets who come to your house. Cats do not know that they can catch flukes at any time, just through swallowing fleas when they are carefreely grooming their fur.

Cats do not know that ingesting flea bites during cleaning will make them more susceptible to infection.

Also, worm eggs can attach to objects such as shoes or clothing.

In particular, worm larvae burrow through the placenta or from the mother’s milk passed to kittens. So, at the time of birth, kittens were at risk of worms before you were welcomed home. Besides, roundworms and tapeworms can be transmitted from the gastrointestinal tract if the cat eats or contacts an infected animal (Rembiesa & Richardson, 2003).

6. Should not deworm the cat in any case?

  • The cat is sick, in poor physical condition.
  • Pregnant cats are about to give birth.
  • Hot weather.

7. Some products to support the cat deworming process

These products should not be used indiscriminately. Make sure your cat has been thoroughly tested by the vet. Besides directly following the instructions included in the product, you need to listen to experts’ opinions. Do not turn yourself into a “domestic” veterinarian as it will directly endanger your beloved cat.

How to detect helminths in cats

With such unpredictable harm, it’s essential to find out if your cat has worms or not. Sometimes the very initial findings will help you quickly deal with its condition as well as the timely intervention of a veterinarian before it’s too late.


The initial symptoms will be quite unclear, so you need to consider carefully because only a few negligences, can make false assessments.

1. The coat

The fur is the surface covering the cat’s whole body, so it will attract the attention of any breeder.


Cats often like to be petted because they have a silky smoothness that few species have, but if infected with helminths, the cat’s fur will become dry, flattened, and lose the freshness. This could be due to dehydration or difficulty in uptake due to parasitic worms.

2. Gums

Typical cat’s gums will be pink, but if infected with worms, they will turn pale, lacking vitality due to anemia.
If your cat’s gums turn very pale or white, take them to the vet immediately.

3. The change in body shape

Stomach. This is a typical sign of cats who have worms in the early stages when their bellies become large. Although this may be a common manifestation of many diseases, when it has appeared, you should also take your lovely cotton ball to see you.

4. The reaction exchanged with the environment

* Vomiting

This symptom usually appears when the cat has been infected with worms for some time. These parasitic animals interfere with circulation to the stomach or irritate the stomach lining, making your cat feel nauseous.

* Cat feces

Cats infected with helminths are more likely to have bloody diarrhea or diarrhea. If your cat’s stool is tarry (due to dried blood) or watery (caused by diarrhea), unfortunately, this could be one of the signs.(Tun et al., 2015).

* Apathetic

Not eating or suddenly getting lazy, looking around, and watching the surrounding life are also symptoms of a worm infection. Being directly nourished by the worms causes the cat to lose appetite, resulting in the lack of the substances necessary for sustaining life, so they are no longer active as usual.

5. The appearance of strange objects is wrapped in eggs of worms, tapeworms

Egg bags of some species of worms, tapeworms like hookworms or tapeworms will be very common in places such as the cat’s anus, cat litter or other preferred areas where the cat usually lies.


These egg sacs are about the size of sesame seeds or cucumber seeds, and are milky in color and can move around.

Infected helminths from cats

Once you’ve got a cat, cuddling and patting it daily is an irreplaceable thing. But when you show affection for your beloved pet, it is time for germs of a strange disease to emerge: A helminth infection from cats.


Within the scope of this article, I will give you the basic knowledge about this rather strange disease.

1. What is a helminth infection from cats?

Cat helminthiasis is an animal-to-human infection caused by the parasitic nematode commonly found in the catgut (T. cati).

2. Reasons

Roundworm is the Toxocara cati of the Ascarridae family. They usually parasitize the cat’s small intestine, then lay their eggs and follow the feces. When cats eat it will be infected with adult worms, there are cases where worm larvae cross the placenta or milk from mother cats to kittens.(Capári et al., 2013).


People who are infected are usually random hosts, either by swallowing worm eggs found in soil or water contaminated with cat feces, or swallowing worm larvae when eating undercooked cat meat.


Those who ingest T. cati worm eggs hatched eggs release larvae in the small intestine, the larvae go through the intestinal wall and move to the liver. From the liver, larvae through the circulatory system and lymph migration to other organizations such as the lungs, viscera in the abdomen, eyes … cause internal injuries.

Worm larvae cannot develop into adult worms and cannot replicate life cycles in humans. Larvae can persist in institutions for many years if left untreated.(Zanzani, Gazzonis, Scarpa, Berrilli, & Manfredi, 2014).

3. Symptoms

For most people, infection with nematode worms causes no symptoms, and the parasites usually die within a few months.

However, some people experience mild symptoms such as:

  • Cough
  • Fever of about 38 ° C or higher
  • Headache
  • Stomach pain

In rare cases, worm larvae infect organs such as the liver, lungs, eyes, or brain and cause severe symptoms such as:

  • Tired
  • Loss of appetite or weight loss
  • Itchy skin rash
  • Wheezing or difficulty breathing
  • Convulsions (multiple episodes)
  • Blurred vision or cloudy, usually only affects one eye
  • One eye is very red and sore

Severe symptoms may last for years, pneumonia syndrome, endophthalmitis, chronic abdominal pain, and focal neurological disorders that may occur due to migration of Toxocara larvae, leukocytes, and eosinophilia may account for 80-90%.(Capári et al., 2013).

4. Treatments

If you find yourself experiencing these symptoms, see your doctor right away. There is no limit to the infection of helminths from cats.

5. Ways to prevent it

There are many ways you can prevent yourself from this type of disease in regards to What to Expect after Deworming a Cat. Please pay attention and follow these following ways for your safety:

  • The germ of infection is from your pet, so the first thing you need to do is take your pet to a veterinarian to prevent Toxocara infection. Your veterinarian may recommend tests and treatment for deworming.
  • Wash your hands with soap and water after playing with pets or other animals, after outdoor activities, and before preparing food.
  • Clean up your living area and pet. Especially, you should clean dung or tailings waste about 3 times a week.
  • Children are especially susceptible to this type of disease because they are often attracted to cats in particular. You should teach them how to play or wash their hands after playing with a cat and do not leave them near the cat litter area.

Conclusion

Usage of dewormer infections are common as it can eliminate parasites; you should always seek advice from a veterinarian before letting your cat go through deworming. By doing that, your cat will have proper medication, and you can be fully prepared to deal with the side effects.

So, what to expect after deworming a cat? You’ve got the answer. Also, you can Ask Vet below Chat or Click Here.

References 

Baneth, G., Thamsborg, S. M., Otranto, D., Guillot, J., Blaga, R., Deplazes, P., & Solano-Gallego, L. (2016). Major parasitic zoonoses associated with dogs and cats in Europe. Journal of Comparative Pathology, 155(1), S54–S74.

Beugnet, F., Bourdeau, P., Chalvet-Monfray, K., Cozma, V., Farkas, R., Guillot, J., … Miró, G. (2014). Parasites of domestic owned cats in Europe: co-infestations and risk factors. Parasites & Vectors, 7(1), 291–296.

Capári, B., Hamel, D., Visser, M., Winter, R., Pfister, K., & Rehbein, S. (2013). Parasitic infections of domestic cats, Felis catus, in western Hungary. Veterinary Parasitology, 192(1–3), 33–42.

Day, M. J., Horzinek, M. C., Schultz, R. D., & Squires, R. A. (2016). Guidelines for the vaccination of dogs and cats compiled by the Vaccination Guidelines Group (VGG) of the World Small Animal Veterinary Association (WSAVA). Journal of Small Animal Practice, 57, E1–E45.

Dryden, M. W., & Payne, P. A. (2005). Preventing parasites in cats. Veterinary Therapeutics, 6(3), 260–264.

Rabinowitz, P. M., Gordon, Z., & Odofin, L. (2007). Pet-related infections. American Family Physician, 76(9), 1314–1322.

Rembiesa, C., & Richardson, D. J. (2003). Helminth parasites of the house cat, Felis catus, in Connecticut, USA. Comparative Parasitology, 70(2), 115–119.

Tun, S., Ithoi, I., Mahmud, R., Samsudin, N. I., Heng, C. K., & Ling, L. Y. (2015). Detection of helminth eggs and identification of hookworm species in stray cats, dogs and soil from Klang Valley, Malaysia. PloS One, 10(12).

Zanzani, S. A., Gazzonis, A. L., Scarpa, P., Berrilli, F., & Manfredi, M. T. (2014). Intestinal parasites of owned dogs and cats from metropolitan and micropolitan areas: prevalence, zoonotic risks, and pet owner awareness in northern Italy. BioMed Research International, 2014.

14 COMMENTS

  1. I just adopted two 6 mth old kittens from the Humane Society Nov. 9th, 2019. They had a second deworming medication on Nov. 7th. One of the kittens is having very smelly, soft poo poo. She is very skinny & boney and has been going poo within 15 minutes of eating. She is eating and drinking alot but is using the litter box constantly. I am very worried. I haven’t heard back from the Humane Society after leaving several messages. Any advice would be greatly appreciated.
    Sincerely,
    Linda Ellement

    • I suspect your cat is having an infection in his/her gut. The causes vary but you sounded a bit serious to me. Since diet, parasites, or digestive disorder can be the causes but smelly stool is a real problem that may relate to retrovirus infections.
      And the kitten is still little, its immune system is too vulnerable to afford any guess at this moment.
      So, my best advice is not to guess anything but take the kitty to the vet right away. Any kind of intestinal disease is lethal and should be taken seriously.

  2. I’ve been searching for signs after deworming and found little to nothing. This post really helped me and help ease my worry alot! Thank you.

  3. My 10 week kitten has recently gotten his second dose of dewormer, but it has been more than 24hrs since (2 days to be exact), and I still see segments of the tapeworm around his anus a few times. Do you think that means he still has tapeworms and needs a 3rd dose of dewormer? He no longer has fleas, so I’m not sure why he still would have tapeworms segments coming out of him.

    • As for boarding your feline, that is usually not required due to the truth that the tapeworm therapy works so fast. Your veterinarian can likewise advise you on this.
      A lot of tapeworm drugs kill the adult tapeworms within 24 hours after they are given. In some cases, a third dosage is needed 3-4 weeks later on to kill any kind of staying grownups as well as those that were larva at the time of the therapy. I advise that you ask the veterinarian that recommended the treatment regarding just how quickly the drug they recommended works.

    • In most cases, worms should be treated no matter how old the cat is. You can consult the vet for the right brand of deworming pills you can use. However, cats getting thinner or losing weight may not be a sign of worms. The causes are variable which may include illness. But sickness of the old is inevitable.
      It has been identified for many years that both healthy protein and also fat digestibility reduction in several apparently typical pet cats after ten years old. While the reason for the declines stays unclear, the modifications are quite marked in some individuals and also, in particular, can be dramatic when it comes to fat digestibility.
      If that’s the case, the only thing you can do is to improve the condition by supplying the right and sufficient nutrition as well as affection. That is my best answer. Hope you find it useful.

    • The signs can vary if your cat is infected with coccidia. In adult felines, there may be no indicators of infection, while in kitty cats the signs and symptoms can be a lot more serious. The most typical sign is diarrhea; in serious scenarios, looseness of the bowels can be accompanied by blood in the stool. … The coccidia parasites are usually determined microscopically in your feline’s feces. The good information is that coccidiosis is a really treatable problem.
      So, if this is the case you are treating your kitty, it can be the remaining of Coccidiosis. But if the condition prolongs, it’s a must for you to visit a pet clinic.

  4. My kitten has been given his deworming medicine and has had traces of the worms the past 4 days since. Is this normal, longer than normal or could it have been unsuccessful?

    • Hi Kaylee, thanks for the question. It takes around 3-4 weeks for the dewormer to show a clear effect. So, 4 days is a too short period to tell if there is any anomaly. I think you should wait for little while.

  5. Our cat is a 7 yr old outdoor cat. A week ago she had her yearly check up and she lost 3 lbs since last year. She went from 8 to 5 lbs. we noticed she wasn’t eating as much of her food. The vet gave her a dewormer. I have been giving her a variety of kitten and cat foods to help her gain some weight back and a week into this she is not gaining weight. Is this normal?

    • Hi. Cats refuse their diet is quite common due to a variety of reasons. It can be dental problems, inner pain, anxiety, and a number of diseases. I never see my 4-year-old cat ignores his meals even at that time he got allergic to the new food. So, it can be aging that causing the loss of appetite or symptom of a hidden sickness. I can’t make a precise guess, you may keep watching the kitty and tell your vet the abnormal signs, they know what’s best to do.

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