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How will roundworms affect my cat?
Adult roundworms live in the affected cat's intestines. Most cats will not have signs of infection; however, cats with major roundworm infections commonly show weight loss, dull hair, and a potbellied appearance. The cat may cough if the roundworms move into the lungs.

You may notice adult roundworms in your cat's feces or vomit. They will appear white or light brown in color and may be several inches long.

How do I prevent my cat from getting roundworms?
Because roundworms can enter your cat's body in many different ways, it is essential to keep your cat's living area clean (regular cleaning of the litter box) and, if possible, prevent your cat from eating wild animals that may carry roundworms. Kittens should be treated for roundworms every 2 weeks between 3 and 9 weeks of age and then receive a preventive treatment monthly. Fecal (stool) examinations should be conducted 2 to 4 times during the first year of life and 1 or 2 times each year in adults. Nursing mothers (queens) should be kept on monthly preventive and treated along with their kittens. Many heartworm medications also control roundworms. Ask your veterinarian about prevention and treatment choices.

Can humans be harmed by roundworms?
Roundworms do pose a significant risk to humans. Contact with contaminated soil or feces can result in human ingestion and infection. Roundworm eggs may accumulate in significant numbers in the soil where pets deposit feces. Children should not be allowed to play where animals have passed feces. Individuals who have direct contact with soil that may have been contaminated by cat or dog feces should wear gloves or wash their hands immediately.

© 2006 Companion Animal Parasite Council

Roundworms