How Do Cats Behave If They Have Worms?
Worms are a common and serious health issue for cats. Both kittens and adults can be affected by various types of internal and external parasites that cause a range of symptoms, some severe. Understanding how cats act when infected with worms is crucial for early diagnosis and treatment. Below is an in-depth guide on the signs of parasitic infection in cats, types of worms, diagnosis, treatment, and prevention.
Common Signs That a Cat Has Worms
Cats with worms may not always show symptoms, especially if the infection is mild. However, more significant infestations often present with noticeable signs:
- Visible worms in feces or vomit, especially with roundworms and tapeworms.
- Diarrhea, sometimes with blood or mucus.
- Vomiting, which may include worms.
- Weight loss despite a normal or increased appetite.
- Dull or rough coat and general poor body condition.
- Pot-bellied appearance, particularly in kittens with roundworms.
- Lethargy or reduced activity levels.
- Pale gums, an indicator of anemia, commonly caused by hookworms.
- Coughing or respiratory distress, potentially due to lungworms or heartworms.
Types of Worms in Cats
- Roundworms: Most common, particularly in kittens. Visible in feces or vomit and can cause bloating, diarrhea, and poor growth.
- Hookworms: Feed on blood in the intestines, leading to anemia, weight loss, and black stools.
- Tapeworms: Segments resemble rice grains and may be seen around the tail or in feces. Often linked to flea infestations.
- Stomach Worms: Rare but can cause vomiting and malnutrition.
- Whipworms: Uncommon, potentially causing bloody diarrhea and weight loss.
- Heartworms: Rare but serious. May cause coughing, labored breathing, or sudden collapse.
- Lungworms: Acquire through infected prey or water. Symptoms include coughing or breathing problems.
- Bladder Worms: Rare and usually asymptomatic. In severe cases, signs mimic urinary tract infections.
- Liver Flukes: Acquired by eating infected lizards or frogs. May lead to digestive issues and jaundice.
- Coccidia and Giardia: Microscopic parasites leading to diarrhea and dehydration, especially in kittens.
- Toxoplasma: Often asymptomatic but shedding of the organism is a human health concern.
How Worms Are Diagnosed
Veterinarians diagnose worms mainly through fecal tests. Fresh stool samples are examined for eggs, larvae, or protozoan cysts using flotation tests or direct smears. Some worms can also be spotted visually in the feces or vomit. Repeated testing may be necessary for accurate results.
Treatment and Recovery
Treatment is effective and typically involves oral, topical, or injectable anti-parasitic medications prescribed by a veterinarian. The process may require multiple rounds to eliminate worms at various life stages. Supportive care such as fluids or transfusions might be needed for severe cases, especially in kittens.
Prevention Tips
- Regular deworming: Especially important for kittens, outdoor cats, and newly adopted animals.
- Litter hygiene: Clean litterboxes daily to minimize risk of reinfection.
- Flea control: Prevents tapeworm infection.
- Indoor living: Reduces exposure to infected prey and contaminated environments.
- Routine vet visits: Examine stool samples at least twice yearly for indoor cats and more often for outdoor cats.
- Monthly preventives: Protect against fleas, ticks, and heartworms.
- Good sanitation: Wash hands after handling litter; practice gloving when cleaning stool.
Can Humans Get Worms from Cats?
Some parasites are zoonotic, meaning they can infect humans. Roundworms and hookworms can pose risks, particularly to children and immunocompromised individuals. Practicing good hygiene greatly reduces this risk.
Conclusion
Cats with worms often show subtle or obvious signs such as vomiting, diarrhea, weight loss, and visible worms. Prompt diagnosis and proper treatment are essential to prevent serious health outcomes. Preventive care, including regular deworming and flea control, is crucial to keeping your cat healthy and your household safe.





