[header] How to handle autoimmune skin disease in cats [title] Look for areas of fur loss. [step] If your cat's skin is irritated by an autoimmune disease, it is likely that it will lose patches of fur. Areas of fur loss should be noted and the skin underneath should be watched for signs of irritation and discoloration. 
[substeps] Cats can lose fur for a variety of reasons, including disease or simply over grooming. However, if your cat has areas of fur loss, they should be looked at by a veterinarian, no matter what you may think the cause is.