To prevent the breeding of fleas, you first need to pay attention to maintaining environmental hygiene at all times, cleaning the living environment of cats frequently, and regularly disinfecting various cat supplies with disinfectant water, and often placing them in the sun to keep them dry. You can also spray anti-flea spray or put insecticides at home to prevent the reproduction and birth of fleas; the next step is external deworming, and perform external deworming on cats once a month to prevent the spread of fleas; finally, try to ban cats Outside behavior, because there are many fleas in the garden and lawn outside.