So, you saw fleas and flea dirt on your cat, and went to your veterinarian to get flea medicine. You applied it, but you are still seeing fleas. You think it was a waste of money. Before you blame the ...

Christopher Lee, DVM, MPH, DACVPM, DACVM (Parasitology), argues for year-round isoxazoline use, noting that interrupting the flea life cycle protects both pets and people.

If you're a pet parent, you've probably asked yourself, "How do cats get fleas?" at least once – especially if your cat is kept indoors and you're wondering how they got there in the first place.