Protecting pets from sunburn


SUNLIGHT is healthy for pets as it is for people; sunlight helps the skin produce vitamin D, which protects the skin and helps balance the body’s calcium levels and metabolism. However, too much of anything can be harmful, and too much ultraviolet (UV) radiation can cause sunburn, or solar dermatitis, in cats and dogs.

According to Dr. Karen Campbell, veterinary dermatologist at the University of Illinois Veterinary Teaching Hospital in Urbana, sunburn starts as redness and hair loss on the ear tips, bridge of the nose, or abdomen and can lead to skin ulceration, infection, and carcinoma. Excessive sun exposure can also exacerbate existing skin problems.


Certain breeds of cats and dogs may be predisposed to sunburn. “White cats are those that most commonly get sunburn, usually on the tips of the ears,” explains Dr. Campbell. “Cats don’t need to be outdoors to get sunburn; the UV radiation can pass through windows.”

Sunburn is also common in pale and short-haired dogs, usually on the bridge of the nose, the abdomen, groin, and insides of the legs. “

Sunburn and repeated, excessive exposure to UV radiation can lead to skin cancer, particularly squamous cell carcinoma, in dogs and cats as it does in humans. Therefore, breeds that are predisposed to cancer, such as boxers and Weimaraners, need extra protection from the sun.

Sunburn can also cause skin ulceration, leaving the skin susceptible to opportunistic bacterial, fungal, and parasitic infections. Sun exposure may also exacerbate autoimmune skin diseases in which the immune system attacks skin cells, such as pemphigus and lupus. As the sun damages the skin, skin cells die and can release proteins that inappropriately trigger the immune system.

To protect pets from sunburn and its consequences, Dr. Campbell recommends applying sun block on the small susceptible areas of skin, such as the bridge of the nose and the ear tips. One can also apply a line of sun block along any part in the fur along the head or back. For cats, sun block is usually sufficient.

For dogs, sun block is usually not effective on the abdomen, since it can rub off in tall grass, wash off at the beach, or be easily licked off by the dog or its playmates. Although the idea of bringing a bodysuit-clad dog to the park or beach may sound ridiculous or embarrassing, it may be the most effective and important sun protection one can provide for a pet. Dr. Campbell explains that doggie bodysuits are common at some beaches, and “it doesn’t look ridiculous if all the other dogs are wearing one.”


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