The anal glands are small sacs found on either side of the anal opening of your dog. The lining of the sacs produces a small amount of liquid, which is eliminated each time your dog defecates. The development of a tumor in this area can be significant; even with the presence of a small growth there is the definite possibility that the tissues will be invaded and the cancer will spread metastasize. In some cases, the tumor can cause hypercalcemia elevated blood calcium , leading to kidney failure. An anal gland tumor is not always obvious to the eye as the tumor may be growing inward. If your dog has an anal gland tumor, he may present some or all of these symptoms:. Apocrine Gland Adenocarcinoma may lead to kidney failure due to elevated blood calcium which may present as follows:.
Dog Breed Guide. Cat Breed Guide. Pet Health Conditions. Weekly pet tips - sent straight to your inbox. Subscribe to our free e-newsletter.
Anal sac disease is the most common disease entity of the anal region in dogs. Small breeds are predisposed; large or giant breeds are rarely affected. In cats, the most common form of anal sac disease is impaction.