Solar Dermatitis

What is Solar Dermatitis?
Solar dermatitis occurs when skin becomes affected by long-term exposure to sunlight. Short-term, these same dogs and skin areas may experience sunburn, particularly on areas with thin or light hair that are exposed to sunlight. With continued exposure, the skin can become permanently damaged and more susceptible to tumor growth.

How does my pet get Solar Dermatitis?
As with people, dogs are susceptible to sunburn and sun damage. Exposed skin, especially unpigmented skin, or skin under thin or light-colored hair are most affected. The bridge of the nose and ears are common areas. Dogs that like to sunbathe, especially those that lie on their back to expose their sparsely coated abdomen and inner thighs while doing so, are particularly at risk.

How do I know if my pet has Solar Dermatitis?
You will see changes that may include reddened or thickened skin, rough patches, hair loss and blackheads. Secondary infections can cause bumps and discharge. Your veterinarian may suspect solar dermatitis based upon your dog's lifestyle and the appearance and locations of his affected areas. She may still need to perform tests to rule out other possible causes. A skin biopsy may be performed, but it may have to wait until any secondary bacterial infections are cleared up.

What can I do about Solar Dermatitis?
Treatment first consists of preventing further sun exposure. Keep your dog inside during the day, apply sun block, or have him wear a shirt. Treat any bacterial infections. Oral supplements such as beta-carotene may help, and topical medicines such as immunomodulators may also help. Any skin cancers should be surgically removed. You must continue to monitor your dog for skin cancer, because damaged skin is more prone to form cancerous areas even months or years later.

Is there anything I can do to prevent my dog from getting Solar Dermatitis?
Do not allow your dog to spend excessive time in the sun, especially if he has thin or light hair, light colored skin, or sunbathes on his back. This is particularly true in sunny climates and high altitudes. Apply sun block to at-risk areas such as the bridge of the nose.

Are there certain breeds that get Solar Dermatitis more often?
Dogs with thin hair, light colored hair, and light colored skin are most at risk.