There is a long list of possible causes of cat dandruff.
Some are not nearly as threatening as the others, like when a cat can't groom
certain body parts because it's too fat. And then there are more bothersome
reasons, like bug infestation problems, which you can fix by using anti-flea
shampoos.
But the one thing that warrants caution is the possibility that your cat has cancer. Arrange for an appointment with the vet if you think your cat's dandruff is out of control. Cutaneous lymphoma is a medical emergency that requires professional help to address.
It could also be a matter of diet, in which case you should take a second look at what you've been feeding your cat. If its meals consist of salty food, your pet's dandruff could have resulted from an ongoing kidney problem. A situation for which a vet can prescribe medicine.
Other indicators of a severe underlying condition include vomiting, dry and cracked skin, a gloomy disposition, and refusal to eat.
If you notice any signs of infection, parasites, and other skin and hair coat problems, it is a good idea to make an appointment with your animal hospital Gresham, OR so your pet can undergo a thorough checkup.