You can judge whether there are fleas and lice by whether there are black granular substances on the cat's body, and whether the cat has symptoms such as itching, hair loss, and red and swollen skin. For cats infected with fleas and lice, it is recommended to use drugs containing fipreronil, selamectin and other ingredients for external deworming treatment. Since this type of parasite will still exist in the environment, it is also necessary to use pet-specific disinfectant to disinfect the environment and pet supplies. ​​​​​​

How to check if there are fleas and ticks on a cat?

Cats that are sensitive to fleas may develop allergic symptoms after getting fleas. Even if your cat is not allergic, fleas can bite your cat and cause his or her skin to become sore and itchy. Therefore, one obvious sign that a cat has fleas is that it frequently licks and bites its body hair in an attempt to drive away the fleas. Fleas don't always stay on cats. They jump on them when they want to suck blood, and then slip away after sucking blood, disappearing and reappearing. This also explains why some cats have symptoms of fleas but no fleas can be found on their bodies.