General Information About Anal Glands Anal gland problems affect millions of pets and are a very common and frustrating problem. Anal gland issues arise when the anal glands of dogs and cats becoming over-filled, blocked, or irritated. All dogs and cats have these two small glands sometimes referred to as anal sacs near the anal opening. These glands which are typically the size of a small grape normally release a few drops of scent marking fluid whenever your pet defecates observed near the end of defecation. The illustration above shows the relative size and position of the anal glands in dogs often referred to as anal sacs. Note that the anal glands are internal and cannot be seen when viewing the rear end of a dog.
Our Castle Rock veterinarians have put this article together to help you tell if your dog needs his anal glands expressed. Some pet parents bring their dogs in every month or more often , if their dogs have been having recurring issues. Help your pup feel better. If you live in Castle Rock or the Denver area, call our veterinarians at or:. Specializing in the care of cats and dogs, our goal is to help you and your pet feel more comfortable, keeping your stress to a minimum.
You know all that doggy butt-sniffing that we humans seem to find either appalling or hilarious? You may not think of that dog in your bed as a predator, but at heart, he is. And like all predators, your dog has anal sacs anal glands located on both sides and slightly below his anus.
The anal glands or anal sacs are small glands near the anus in many mammals , including dogs  and cats. They are paired sacs on either side of the anus between the external and internal sphincter muscles. Sebaceous glands within the lining secrete a liquid that is used for identification of members within a species. These sacs are found in many carnivorans , including wolves ,  bears ,   sea otters  and kinkajous.