Causes
An immune-mediated disease. The conformation of the tail (a low-set tail that covers the anal area) predisposes to its development. The German Shepherd is the most affected breed.
Diagnosis
Examination of the perianal area. The vet assesses the extent of the lesions.
Treatment
Immunosuppressants (the main treatment today is medical, no longer surgical as first-line), diet, hygiene. It is a chronic disease that requires lifelong management.
Prevention
Not preventable. Early detection makes it easier to manage.

