To completely remove fleas from a cat, you need to first clean your pet, then treat it with medication, such as pet-specific flea medications, drops, collars, or sprays. These medications can effectively kill fleas and prevent them from multiplying. Keep your pet's living environment well-ventilated and dry, avoiding damp environments that breed fleas.

In addition, prevention is also important. Avoid letting your pet come into contact with other animals that may carry fleas, such as stray cats and dogs. Take your pet to the vet for regular checkups to detect and treat flea problems promptly. When outdoors, try to avoid letting your pet play in grassy areas, bushes, or other places where fleas easily breed.