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Dermatitis and Dermatologic Problems in Cats

By

Karen A. Moriello

, DVM, DACVD, Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison

Last full review/revision Aug 2018 | Content last modified Aug 2018

Dermatitis is a general word for any type of inflammation of the skin. It is usually used until a specific diagnosis is reached. There are many causes of skin inflammation, including external irritants, burns, allergens, trauma, and infection (bacterial, viral, parasitic, or fungal). Dermatitis can also result from internal or body-wide disorders.

The signs of dermatitis can include itching, scaling, abnormal redness, thickening of the skin, color changes (increased pigmentation), oil accumulation, abnormal odor, and hair loss. The usual progression of a skin disease involves an underlying trigger that causes bumps, boils, scabs, scales, or blisters.

Abnormal itching, called pruritus, occurs in many diseases and is often present because of secondary infections. As the inflammation progresses, crusting and scaling develop. If the problem reaches the deeper dermis, fluid discharge, pain, and sloughing of the skin may occur. Secondary bacterial and yeast infections commonly develop as a result of skin inflammation. If the dermatitis does not improve, early signs of inflammation (such as redness) become obscured by signs of chronic inflammation (thickening of the skin, color changes, scaling, fluid discharge). Often the skin becomes drier. If itching is not already a sign, it will often develop at this stage.

Resolving dermatitis requires that your veterinarian identify the underlying cause and treat secondary infections or other complications. A review of your cat’s history and a physical examination can more precisely define the problem.

Also see professional content regarding feline atopic dermatitis.

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