What causes anal furunculosis?
No-one really understands what causes the condition to develop. It is more common in dogs with the broad tail base and low tail carriage typical of German Shepherds. This conformation may result in poor ventilation and increased humidity of the anal area. Faecal bacteria may persist in this environment increasing the risk of infection of hair follicles and hormone glands in this area. Underlying problems with the immune system may also play an important role. The disease has also been linked to inflammatory bowel disease and colitis. If your dog has diarrhoea they may be at more risk of developing anal furunculosis.
