How often should anal sacs be emptied and what are some of the misconceptions about the best antibiotics to use for infection? What are anal sacs and why do they fill up? Anal sacs, sometimes mistakenly referred to as anal glands, are two small structures located between the internal and external sphincter muscles. Each sac is lined with both sebaceous and apocrine glands whose combined secretions produce a semi-oil foul smelling brown liquid. As the anal sphincter muscles expand, as defaecation occurs, pressure on the sacs leads to the expulsion of their contents over the faeces. Problems arise when this emptying process does not occur and the secretions build up in the sac, causing obvious discomfort to the dog.
Anal Sac Disease
Anal sacs: a new approach to an old problem? | Veterinary Practice
Impacted anal glands are often the first stage of anal sac disease. As the impacted anal glands become swollen and distended, they become inflamed and can make it painful for your dog to pass feces. This second stage of inflammation is referred to as sacculitis. Bacteria can begin to grow and cause an infection.
Anal sacs: a new approach to an old problem?
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. Anal sacs may become impacted, infected, abscessed, or neoplastic. Failure of the sacs to express during defecation, poor muscle tone in obese dogs, and generalized seborrhea which produces glandular hypersecretion lead to retention of sac contents.
The most common disease of the anal sacs where the sac becomes impacted by a viscous, grey-brown secretion. It is caused by a failure of the sacs to empty normally during defecation, obesity, poor muscle tone and generalized seborrhea. The retained secretion can encourage bacterial overgrowth and therefore infection and inflammation. Can occur in any dog of any age, breed or gender however small breed dogs and obese dogs are predisposed. The most common disease affecting the anal sac of the cat, however rare in this species.