Intestinal Worms in Cats: Causes, Symptoms, and Treatment

Intestinal worms are common parasites that can affect cats of all ages. Although they often go unnoticed, they can affect your feline's health if not detected and treated promptly, especially in prolonged or untreated cases. In this blog, we explain the types of worms, how they are transmitted, the most common symptoms, and the treatment options available to eliminate them safely and effectively.

What are worms in cats?

Worms are internal parasites that lodge in a cat's digestive tract. They feed on the nutrients the animal consumes and, in some cases, can also cause physical damage to organs. They are one of the main reasons why regular deworming is recommended, even for indoor cats.

Most common types

• Toxocara cati (roundworm): One of the most common, especially in kittens. They can be seen in feces or vomit.

• Hookworms: They feed on blood and can cause anemia, especially in kittens.

• Dipylidium caninum (tapeworm): It is transmitted by ingesting infected fleas. It is identified by the presence of white segments in the feces.

• Taenia spp.: Another form of tapeworm, usually contracted by eating small prey such as mice or birds.

• Coccidia and giardia: Although they are not worms, they are protozoa that also cause intestinal disorders and are sometimes confused due to similar symptoms.

How are they transmitted and where can they be found?

• Ingestion of eggs or larvae: By licking contaminated surfaces, soil, or when cleaning after being outdoors.

• Through infected fleas: Especially in the case of tapeworms.

• Hunting small animals: Rodents, birds, reptiles.

• Transmission from mother to offspring: In the case of roundworms, it can occur through breast milk.

• Contaminated environments: Sandboxes, gardens, or litter boxes shared with other infected animals.

Symptoms

Some cats may not show any visible symptoms, but the most common ones include:

• Vomiting (sometimes with visible worms)

• Diarrhea (may be bloody in severe cases)

• Swollen abdomen

• Weight loss despite good appetite

• Dull or unkempt hair

• White segments (resembling grains of rice) around the anus or in the cat's bed

• Lethargy or weakness

• Excessive itching or licking in the anal area

How to get rid of worms in cats? Treatment

Common options:

• Deworming pills: The most common form of treatment. There are broad-spectrum options that cover several types of worms. Some require a prescription.

• Deworming injections: Used especially in veterinary clinics for cats that do not tolerate oral medication well.

• Pipettes or topical treatments: Some products are applied to the skin and also cover internal parasites.

Key recommendations:

• Always consult with a veterinarian before administering any treatment.

• The dosage depends on the cat's weight, age and health status.

• It is common to repeat the dose after 2 or 3 weeks to eliminate parasites at different stages of development.

• In severe cases, fecal analysis may be required to determine the exact type of parasite.

• Avoid self-medication, as incorrect use can lead to resistance or unwanted side effects.

Home remedies for worms in cats

Important: These do not replace veterinary treatment, but may accompany it if approved by the doctor.

• Ground pumpkin seeds: They contain cucurbitin, a compound that can help expel worms. Add small amounts to food, always under veterinary supervision.

• Waggy's Wellness Support for Cats: This soft treat supplement can be a complement to general digestive care. It contains a formula with functional ingredients such as:

• Pumpkin: Rich in fiber, it supports intestinal health and can promote the expulsion of parasites.

• Probiotics (Bacillus coagulans): Help balance the intestinal microbiota, strengthening the digestive system against imbalances caused by parasites.

• Turmeric and Ginger Extract: With natural anti-inflammatory properties, which can help soothe the gastrointestinal tract.

• Salmon Oil: Source of omega-3 fatty acids that support your cat's immune health and overall well-being.

By integrating them into your daily routine, cat treats like Waggy's Wellness not only strengthen your cat's digestive system but also help keep it more resilient to infections and relapses, as part of a comprehensive preventative approach that complements nutrition and veterinary care.

• Garlic: Not recommended. Although some natural remedies include garlic, this ingredient can be toxic to cats even in small doses. It should not be used under any circumstances without close veterinary supervision.

• Natural flea control: Keeping your cat and its environment flea-free is key to preventing tapeworm reinfestation.

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How do I know if my cat is free of worms?

The most reliable way to know if your cat is worm-free is through a veterinary examination, which often includes a stool (fecal) analysis. This test can detect the presence of intestinal parasite eggs or larvae, even if there are no visible symptoms. Observing your cat's behavior and general condition—such as appetite, energy level, and coat quality—can also offer clues. If you suspect an infestation, it's best to see your veterinarian to confirm the diagnosis and apply appropriate treatment.

How often should I deworm my cat?

The frequency of deworming depends on the cat's age, lifestyle, and environment. In general, kittens should be dewormed for the first time between 3 and 4 weeks of age, repeating the dose every 2 weeks until they are 3 months old, and then once a month until they are 6 months old.

Adult cats typically require deworming every 3 to 6 months. If your cat has access to the outdoors, hunts small animals, or lives with other pets, they may require more frequent deworming. In all cases, it's recommended that the schedule be defined by a veterinarian, who will consider factors such as geographic location, diet, and the pet's medical history.

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How are worms transmitted from cats to humans?

Some intestinal worms in cats, such as Toxocara cati, can be transmitted to humans, especially through contact with soil, objects, or surfaces contaminated with infected feces. This transmission is most common in young children, who may play in dirt or sand without washing their hands afterward. The most effective way to prevent infection is to maintain good hygiene at home, regularly clean the cat's litter box, wash your hands after handling the animal or its waste, and maintain a current deworming schedule. Although the risk to humans is low with good hygiene habits, it is important not to underestimate the risk, especially in homes with children or immunocompromised individuals.

Tips to prevent worms in cats

• Keep your deworming schedule up to date: The most effective prevention against intestinal worms is to follow a regular deworming schedule, as recommended by a veterinarian. Even cats that live exclusively indoors can become infected through insects, contaminated objects, or indirect contact with other animals. A good regimen includes internal deworming and control of external parasites such as fleas.

• Control fleas and other vectors: Many worms, such as Dipylidium caninum (tapeworm), are transmitted through the ingestion of infected fleas. Therefore, it is essential to apply flea treatments regularly and keep the environment clean. Vacuuming carpets, washing cat bedding, and preventing access to infested areas are key practices to reduce the risk.

• Clean the litter box frequently and prevent access to prey: Daily litter box cleaning minimizes exposure to parasite eggs or larvae. It's also important to prevent cats from hunting small animals such as rodents or birds, as they can carry worms. If your cat has access to the outdoors, supervise their outings and prevent them from eating prey.

• Check your cat's overall condition and hygiene habits: Observing signs such as weight loss, diarrhea, or changes in coat can help you detect infections early. Additionally, maintaining good hygiene at home—washing your hands after handling the litter box or playing with your cat—protects both the animal and the people in the household.

Conclusion

Worms in cats are more common than you might think, but with prevention, early detection, and proper support, they can be controlled and complications avoided. A deworming regimen defined by a veterinarian, combined with good hygiene habits and the support of supplements like Waggy's Wellness, can be a valuable tool in your cat's overall care. Remember that professional consultation is always the best option for taking care of your pet's health.

Note: This content is for informational purposes only and does not replace the advice of a veterinarian. If you have any symptoms or concerns, always consult a professional.