Fleas on cats. A common pest.

Fleas thrive in every single state in the United States and are the most common ectoparasite found on cats in North America. They’re tiny, blood-sucking insects that are hard to see on your cat and even harder to detect in your home. Reddish brown in color and totally wingless, fleas are amazing jumpers, boasting an 8-inch vertical leap that makes it simple for them to hop from ground level onto your unsuspecting cat.

To survive, fleas feed on blood, with female fleas consuming 15 times their body weight each day.1 Fleas excrete partially digested blood, or flea dirt, to serve as food for developing flea larvae. Evidence of flea dirt can help both veterinarians and cat owners identify an infestation.

Diligent cat owners count on Cheristin® for cats (spinetoram) to eliminate the infestation. Learn more about how Cheristin's low-volumn topical flea control starts killing fleas fast—within 30 minutes—and kills 98-100% of fleas within 12 hours.2

The dirt on fleas: An educational video

Watch leading expert, Michael Dryden, DVM, PhD, professor of veterinary parasitology at Kansas State University, provide an overview on fleas.

Learn about the flea lifecycle