Worms in Cats and Dogs: Symptoms, Treatment, and Prevention (2026 Update)
Cats and dogs can be infected with several types of internal worms, including roundworms, tapeworms, and hookworms, usually transmitted through contact with contaminated feces, from a mother to her offspring, or via fleas. Common symptoms include a bloated abdomen, diarrhea, weight loss despite a good appetite, and visible worm segments in the stool. Treatment is straightforward with a dewormer prescribed by a veterinarian, and prevention requires regular, scheduled doses.
What are the most common types of worms in cats and dogs?
- Roundworms
- Tapeworms
- Hookworms
- Heartworms, which affect dogs in particular
Symptoms of worm infection in your pet
- A bloated or swollen abdomen, especially in puppies and kittens
- Diarrhea or stool containing mucus or blood
- Vomiting, sometimes with visible worms
- Weight loss despite a normal or even increased appetite
- Dull, lackluster coat
- Itching around the anus; the pet may drag its rear on the ground
- Lethargy and general weakness in advanced cases
How do pets get infected with worms?
Worms spread through ingesting worm eggs found in soil or the feces of infected animals, from an infected mother to her puppies or kittens during pregnancy or nursing, by ingesting infected fleas while grooming, or by preying on infected rodents or insects.
Can worms spread from pets to humans?
Yes, some types of worms, such as roundworms, can infect humans, especially children, through contact with contaminated soil or feces without washing hands afterward. This is why regular checkups and a consistent deworming schedule are recommended to protect family members as well.
Treatment and Prevention
Treatment involves one or more doses of a dewormer chosen according to the type of worm and the animal’s weight and age; your veterinarian determines the right medication after an examination or stool analysis. For prevention, adult pets are usually dewormed roughly every 3 months, while puppies and kittens need a more intensive schedule every two weeks until about 3 months of age, along with keeping the litter box and surrounding environment clean.
Frequently Asked Questions About Worms in Cats and Dogs
How often should deworming be repeated?
Usually every 3 months for adult pets, with a higher frequency for puppies and kittens as directed by your veterinarian.
Are worms dangerous for puppies and kittens?
Yes, they can cause anemia and severe malnutrition, and even death in severe cases in young animals, which is why starting a deworming program early is important.
Can worms be prevented without medication?
Consistent hygiene reduces the risk but does not replace the periodic doses recommended by your veterinarian.
At Top Vet Clinic in Al-Rabwah, Riyadh, we offer a complete deworming screening and treatment program for your cat or dog under the supervision of specialized veterinarians. Book your appointment now via WhatsApp or call us directly.