The anal sacs are located on either side of the anus just under the skin at the 4 o’clock and 8 o’clock positions. They connect to the anus by means of small canals called ducts. Anal sacs produce and store a dark, foul-smelling fluid. These are the same types of organs that a skunk has to scare away its enemies and mark territory. Although cats use their anal sacs for the same purpose, most domestic cats have no need to mark territory or repel predators. Because the sacs are rarely emptied, the fluid builds up, solidifies, and becomes an ideal environment for bacteria to thrive.

 

Unfortunately anthrax is being used as a method of bio-terrorism and dogs can be infected, as can most mammals. Birds are normally resistant to the disease. Different animals have different levels of susceptibility to anthrax infection. Herbivores (cattle, sheep, horses) are the most susceptible and humans; dogs are less susceptible to infection. Under normal circumstances cases of anthrax in dogs are very rare.

What makes a pet misbehave?

Behavior problems can be due to medical or behavioral causes, or both. A clinical history, physical examination, and diagnostic testing will determine if there are underlying medical conditions contributing to the problem.