1. Flea: The white particles of rice may be flea feces or flea eggs. Fleas are common ectoparasites. They can parasitize on the skin of pets and suck blood. If you find these white spots around the cat's abdomen, tail or neck, it may be the existence of fleas.
2. Dandruff: White rice grains may also be cat dander. Dandruff is caused by dry skin or other skin problems and is usually harmless. You can reduce dandruff by increasing the amount of water your cat drinks and combing your hair regularly.
3. Parasites: Some parasitic infections, such as skin worms, may also cause white rice spots in cats. If you suspect that your cat is infected with parasites, please consult a veterinarian for further examination and treatment.
4. Other skin problems: White rice grains may also be symptoms of other skin problems, such as fungal infection or skin inflammation. All these require the help of veterinarians for diagnosis and treatment.