Anal Sac Disease In Dogs
What is Anal Sac Disease, or Impacted Anal Glands, in Dogs?
You're out on a nice walk with your dog, enjoying the fresh air, when all of a sudden, they start scooting along the ground, almost like they're trying to ‘wipe’ their behind. You might also notice a fishy smell that won’t go away even after a good clean. If this sounds familiar, your dog could have anal sac disease.
This condition can be caused by several things, and it can make your dog pretty uncomfortable. But don’t worry – with the right treatment, you can help your furry friend feel better and prevent it from happening again. 
Let’s dive into what’s going on, find out how to treat it, and how to stop it from recurring. After all, the last thing we want to see is our precious pup in pain.

What are the anal sacs?
Anal sacs (also known as anal glands) are two small pouches located just below your dog's anus. They sit between the internal and external sphincter muscles. 
These sacs are lined with sweat glands that produce a very unpleasant-smelling fluid. Normally, this fluid gets released through a small duct inside the anus. This release typically happens when your dog poops, and it's thought to be a way for dogs to mark their territory or communicate with other dogs.
However, sometimes these sacs can become impacted, infected, or swollen, causing discomfort for your pooch. That’s when you’ll see them scooting – and a sign it’s time for action!
 
What are impacted anal glands?
The first stage of anal sac disease in dogs is usually impacted anal glands. This happens when the glands get blocked and swollen, making it painful for your dog to poop. You’ll often see them scooting along the ground in an attempt to relieve the discomfort.
The next stage is sacculitis, where bacteria can start to grow in the swollen glands, leading to an infection. This makes things even more uncomfortable for your dog, and the area may become red and inflamed.
If things get worse, it can progress to the final stage: an abscess. This is when the infected glands form a pocket of pus. If the abscess bursts, the pus can spread, causing further infection in the surrounding areas, including the anus and rectum. 
In serious cases, this can lead to a hole near the anus that might require surgery to fix.
Normally, the anal glands or ‘sacs’ produce a greasy, foul-smelling substance that your dog uses to mark its territory. When your dog poops, the stool should apply enough pressure to push the substance out of the glands. 
However, if that pressure isn’t enough for some reason, the substance can build up and thicken, eventually blocking the glands. This is when impacted anal glands occur, leading to swelling, irritation, and discomfort for your dog.
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Symptoms of impacted anal glands in dogs
If you notice any signs of impacted anal glands, it’s important to take them seriously, as untreated cases can lead to serious infections. 
One of the first things you may notice is your dog paying a lot of attention to their anal area, such as licking, biting, or even scooting along the ground. This is usually a sign that something down there is bothering them.
Here are a few other symptoms to watch out for:

  •       Scooting rear end along the ground. This is when your dog drags its backside along the floor
  •       Excessive tail chasing
  •       Excessive licking or biting at the anal area or the root of the tail
  •       Painful defecation
  •       Foul smell from the backside
  •       Red, swollen, and painful anal area
  •       Increased aggressiveness 
  •       Brown or red discharges from the anal area, often spotting the floor
  •       Diarrhea or other digestive problems preceding other symptoms
  •       An abscess near rectum
  •       A hole near your dog’s rectum that releases bloody or greenish-yellow pus

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Causes of impacted anal glands in dogs
Anal glands can become impacted when the substance inside them doesn’t get squeezed out properly. This causes the fluid to thicken, leading to swollen sacs and blocked ducts, which prevent any secretions from leaving the glands.
There are a few different reasons this might happen, including:

  •       Inflammation of the anal sacs
  •       Loose or irregular stools
  •       Trauma, such as from pinching, squeezing, or unnecessarily manually expressing the glands
  •       Genetics. Some breeds are more prone to anal gland problems, such as smaller breeds like Chihuahuas, Dachshunds, or Toy Poodles
  •       Overweight dogs may have less muscle tone around their anal glands, making it harder for glands to empty properly.
  •       Infections
  •       Skin disorders
  •       Poor muscle tone
  •       Tumors 
  •       Excessive gland production

Anal sac disease in dogs – breeds most likely to be affected
Impacted anal glands in dogs is a relatively common condition – it’s estimated that *around 4% of dogs are affected by it each year. It’s generally seen more often in obese and older dogs, perhaps due to their reduced activity, as well as reduced muscle mass and a decreased ability to groom.
Research has shown that some breeds are more likely to be affected than others. If you own one of the following breeds, it’s worth being especially vigilant: Chihuahua, Dachshund, Miniature Poodle, Toy Poodle, Shih Tzu, Cavalier King Charles Spaniel, as well as crosses between Cocker Spaniels and Poodles, and the Bichon Frise.

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Diagnosis of impacted anal glands in dogs
For your vet to work out how best to treat your poor pooch, they’ll need to know the following:
  • When you first saw the symptoms
  • How the symptoms have progressed 
  • Any recent illnesses or injuries your dog may have had
  • Any changes of behavior or diet
  • If your dog has had their anal glands manually expressed, either at home or by a groomer.
 
Physical examination

With the information you’ve provided, your vet will likely begin by performing a physical exam, which may include a rectal exam. If your dog’s anal sacs are impacted or infected, the vet will be able to detect it right away. 
They’ll look for signs like swelling, odor, or unusual secretions to help make the diagnosis. 
 
Laboratory tests for impacted anal glands in dogs

If your dog’s anal sacs keep getting impacted or if the issue keeps coming back, your vet may suggest a few tests to figure out the root cause. 

Tests like a urinalysis, stool analysis, anal swab, and blood tests can provide valuable info about your dog’s overall health and help pinpoint any underlying conditions.
They can also rule out other possible causes or identify hormone imbalances, electrolyte problems, or chemical abnormalities that might be affecting the anal glands. 
In some cases, your vet might also recommend X-rays or scans to check for tumors or other physical issues that could be blocking the glands and preventing proper drainage.
 

Treating impacted anal glands in dogs

Manual method
In many cases, treating impacted anal glands is as simple as having your vet manually express the glands.
During this procedure, the vet will gently squeeze each gland to release the thickened fluid. This is quick and effective method can provide immediate relief for your dog.

Flushing method
If the impaction is more severe or if the glands have become infected, your vet may need to take more advanced steps. 
In these cases, your dog might need to be sedated so that the glands can be flushed out with saline or a softening solution which helps clear out the blockages and reduces the risk of infection.
In some cases, a single treatment may be enough to solve the problem. However, your vet might recommend manual expressions of the glands from time to time to help prevent future issues and keep your dog comfortable.
 
Steroids method
To reduce inflammation and pain, your vet may prescribe topical or oral steroids. These can help soothe discomfort and help healing. 
If there’s an infection present, antibiotics can clear it up. For dogs with an abscess, a combination of surgery, antibiotics, and hot compresses can help with the healing.
Pain medication may also be given to ensure your dog stays comfortable while the swelling and inflammation decrease.
 
Surgery
In very severe cases, or for recurring impactions, your vet may recommend having your dog’s anal sacs surgically removed. While this does provide a permanent solution, it can sometimes result in your dog suffering fecal incontinence.

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Recovery and prevention of impacted anal glands in dogs
Many dogs who have experienced anal sac impaction will find it happening again. With each recurrence, the ducts leading out of the sacs can get more damaged, which will increase the likelihood of future impactions.
If the issue becomes chronic, surgery can offer a permanent solution. While most dogs recover well from surgery or other treatments, it’s important to keep an eye on your dog afterward. 
Your vet may recommend periodically expressing your dog's anal glands to help prevent further problems. However, always consult your vet before attempting this yourself.
As with many health issues in our canine friends, the best way to deal with infected anal glands is to prevent them from happening in the first place. 
Regular check-ups and being proactive about your dog’s health can help keep them comfortable and free from this recurring problem. Your vet may well recommend putting your pet on a high fiber diet and as the condition tends to occur in obese dogs, regular exercise is also a must!
Having a well balanced diet is crucial for your dog’s wellbeing. If they are prone to anal sac disease then high fiber dog foods are a must. Check out our choices and find one that suits your pooch best
Impacted Anal Glands Questions and Advice from Veterinary Professionals
Maltese poodle
Ten Years

60 found this helpful

60 found this helpful

My pet has the following symptoms:
Swollen Anus And Shaking
My dog recently started to shake like he’s cold and has a swollen anus. Not been eating lately. What do I do? Besides the vet
Sept. 28, 2020
Answered by Dr. Michele K. DVM
60 Recommendations
Thank you for your question. If your dog is not eating, and is shaking, he is sick - there is no home therapy that I can recommend, and he does need to see a veterinarian. They will be able to examine him, see what might be causing the problem, and get treatment for him.
Oct. 8, 2020
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Yorkiepoo
11 months

0 found this helpful

0 found this helpful

My pet has the following symptoms:
Diarrhea With Little Blood, Vomiting Poop
Her bottom is very red and swollen could this be an anal gland problem? She is licking at her bottom and scutting after she goes. Her dog bed where she went to the bathroom
Sept. 27, 2020
Answered by Dr. Michele K. DVM
0 Recommendations
Thank you for your question. It would be best to have your pet seen by a veterinarian, as they can examine them, see what might be going on, and get treatment if needed.
Oct. 14, 2020
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