Vet Blog

11/02/09

Client Asks to Participate in Procedure and Lives to Regret it
Dr. Eric Barchas, DVM

schnauzerA few days ago a very nice woman brought her Miniature Schnauzer to my office. The dog had been acting agitated for several days. He seemed reluctant to sit down, but when he finally was seated the dog had a tendency to rub his hind end on the floor.

A thorough general physical examination was unremarkable (unremarkable is how veterinarians say normal–we can’t actually say normal because the word normal, according to some malpractice insurance providers, implies things that can be very dangerous if we have missed something subtle).

The symptoms were consistent with an anal gland problem. If you never have heard of anal glands, consider yourself lucky. You may want to stop reading now in order to preserve your innocence.

The anal glands are bulbs located adjacent to the anus. The bulbs are connected to the anus by ducts. The glands produce a fluid with a unique odor. It smells like a combination of rotting fish, feces, and tear gas.

Cats and dogs have anal glands. Skunks do too–the glands are modified in skunks and are responsible for skunks’ unique smell.

The anal glands normally empty when a cat or dog defecates. In some instances, however, this does not happen as it should. The result is anal glands that are impacted and distended. Animals with impacted anal glands often drag their rear ends along the ground.

Impacted anal glands are treated by manual expression. The most effective means of manually expressing anal glands involves inserting a finger into the animal’s rectum and massaging the accumulated fluid out of the glands.

This is what I proposed for my patient whose hind end was so uncomfortable.

The owner accepted my proposal. However, she declined to accept my recommendation that the procedure be performed in a section of the hospital where only employees were present. She asked to be present while her dog’s anal glands were expressed.

Palpation of the glands revealed that they were both markedly distended. Both glands were expressed with ease. A large amount of fluid was released.

As the smell of the fluid filled the room, the owner of the Miniature Schnauzer soon was ill at ease. She complained of light headedness and dizziness. She asked to sit down. She retched and nearly vomited.

The nurse and I escorted her to some fresh air. She rapidly recovered. I blame myself for not warning her vehemently enough that anal gland fluid smells really bad.

After enough time one becomes inured to the smell of anal glands. To the uninitiated, however, it can be overpowering.

Share this entry with your pawple anywhere:

See related Vet Blog entries:
03/26/09

Do Tapeworms Cause Itchy Rears?
Dr. Eric Barchas, DVM

525534_1177220526.jpgI recently adopted an eight pound nutered Maltese. He
was covered in fleas and recently even though he
is now flealess, he has begun licking his rear.
Suspecting tape worms, I took him to the vet
Saturday and he was injected with 56.8mg/ml
Droncit. There were no problems with the
injection however it’s now been over 24 hours and
he continues to lick his but. The vet told me
sometimes the shot has to be repeated, how long
should I wait before I decide if he needs another
shot and when should I see a stop in the licking?

Marilynn
Winchester, CA

Pets don’t have fingers. Therefore, they use their tongues and toes to scratch. When a pet licks any area of its body excessively, I take it as a sign that the area itches or tingles.

Two issues commonly cause pets to lick their rear ends in seemingly excessive manners.

Fleas are by far the most common cause of rear end licking in cats and dogs. Flea bites may stimulate pets’ immune systems. In the same way that pollen causes some peoples’ eyes to itch, flea bites cause many pets’ rear ends to itch. For some pets, a single flea bite may cause severe irritation on the back near the tail.

Impacted or irritated anal glands also may cause licking near the tail. The glands, located (as the name implies) adjacent to the anus, produce a foul smelling fluid that usually is deposited on feces. Any irregularity with the anal glands can cause pets to scoot their hind ends along the ground or lick their rears.

Less commonly, allergies to pollen, food, or any number of environmental agents and chemicals also may cause irritation of the skin near the hind end. In my experience, it is not common for tapeworms to cause excessive rear end licking.

Based upon what you have written, it is most likely that fleas are causing your dog’s behavior. I recommend a high quality flea preventative. The itching may persist for several weeks after your dog is free of fleas, because your dog’s immune system may react to the flea bites for quite some time after the fleas are gone.

Conveniently, eliminating fleas also will reduce the risk of tapeworms in your dog. The most common type of tapeworm is spread by fleas.

Photo: Maggie May’s rear end looks fine.

Share this entry with your pawple anywhere:

See related Vet Blog entries: