Our expert says:
German Shepherd dogs are very prone to infection of the skin, especially in that particular area. This condition is usually treated very successfully with a long course of antibiotics (usually longer than three weeks). Although I cannot absolutely rule out the possibility of cancer, by far the most common cause is simply infection and irritation of the skin. In some of the older dogs, as their health starts failing and especially with arthritis, they tend to lie down more often and this may cause irritation and some infection in the skin. I suggest you go see your vet with this dog, cure may only be a course of antibiotics away.
Dr Malan van Zyl
Veterinary Specialist Physician
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