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Why does my cat keep getting worms even after deworming treatment?

Updated On September 23rd, 2025

My cat keeps getting worms. We give him medicine each time but he still keeps getting them.

1 Answer

Most Helpful Answer

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Answered By Debi Matlack

Veterinary Technician

Published on April 8th, 2015

What you're seeing is most likely tapeworms. Tapeworms are intestinal parasites of the cat and dog. They belong to a different family than hookworms and roundworms, which are the other common intestinal parasites of dogs and cats. Fleas are the intermediate host for tapeworms. In other words, the tapeworm is unable to complete its life cycle without the presence of fleas in the environment. Regardless of whether the owner may have seen fleas, the cat must have ingested a flea in order to have tapeworms. Consequently, tapeworms are more common in environments that are heavily infested with fleas. Most commonly, owners recognize that the cat has tapeworms and bring this to the attention of the veterinarian. When segments of the tapeworm break off and pass into the cat's stool, they can be seen crawling on the surface of the feces. These proglottid segments look like grains of cooked white rice or cucumber seeds. Less commonly, segments are seen moving around the cat's anus. A variety of products are available to treat tapeworms in cats but they are not all equally effective. For the best advice on the type of de-worming preparation most suitable for your cat, you should seek the help of your veterinarian. The most effective worming products are only available by prescription from a licensed veterinarian. Flea control, both environmental and on the cat is necessary to help prevent this from recurring.

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