A common, mild skin condition that affects cats is feline acne. Acne in cats is similar to the acne that affects humans. The faces of cats tend to have acne.
Acne in cats may look like blackheads on the cat's chin. If the acne is not clearly visible on the cat's skin, the chin and lips may look like it is dirty. The acne may form crusts.
Severe cases of feline acne can cause open sores, skin irritation, hair loss, swelling, and infection though most cases of feline acne are minor. If the cat is scratching the area, the risk of these complications increases.
Common causes of acne in cats include poor grooming, stress, allergic reactions, and dirt or food caught in skin folds of the cat's face. Cat acne can be due to overactive oil glands in the cat's skin.