Key Takeaways:
- Dog anal glands are small sacs; about the size of a cherry, that sit inside the anus. The sacs are lined with sebaceous glands and they produce a strong, foul-smelling liquid.
- Blocked fluid, an unbalanced microbiome, infections, a ruptured abscess, and cancer can all lead to issues with your dog's anal glands.
- Dogs will drag their bum on the floor, sit down abruptly or refuse to sit, chase their tail and lick or chew at their back end, rump, or legs if their anal glands are full.
- Signs of full anal glands in dogs also include a strong, fishy or foul smell from their rear and swelling, redness, or a visible lump around the anus.
- A vet can confirm if your dog's anal glands are full and express them, especially if you're not confident to do it yourself.
For some individual pets, anal glands can become problematic and owners must be aware of what they are and what can go wrong with them.
Anal Glands: What you need to know
What are anal glands in dogs?
Dog anal glands are small sacs; about the size of a cherry, that sit inside the anus. If we were to say the anus was a clock face, the glands are found at about 4 and 8 o’clock.
The sacs are lined with sebaceous glands and they produce a strong, foul-smelling liquid that dogs use to mark territory and communicate with other dogs in the vicinity.
Anal glands cannot be seen externally and can only be felt by inserting fingers into the anus. This is done with a gloved hand, using lubricant to minimise discomfort.
What causes anal gland problems in dogs
Blockages
Sometimes, the fluid inside the gland is not expressed and it builds up, causing a blockage.
Unbalanced gut microbiome or dysbiosis
The health of your dog's gut, and gut microbiome impacts most parts of your dog's body, including those that affect their anal glands. An imbalance of bacteria in the gut, or dysbiosis, often leads to variable stool consistency. Passing stools often helps dogs naturally express their anal glands, but with softer, more runny poos, they miss out on this opportunity. Plus, an increase in less friendly bacteria from the gut can also lead to inflammation. To find out what's really going on inside your dog's gut and how it may be impacting their overall health and wellbeing, a Gut Health Test is the way to go. Find out more about how to investigate your dog's gut health here!
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Infections
The gland can become infected, leading to discomfort, an elevated temperature and swelling of the gland.
Ruptured abscesses
An advanced infection can cause the gland to swell with pus and to then ulcerate onto the skin. The owner will see a small hole in the skin that is oozing blood and pus.
Cancer
An adenocarcinoma is the most common type of tumour to affect the anal sac. These tumours frequently cause elevated calcium levels and signs such as excess thirst and weakness.
How to tell if your dog’s anal glands are full
One of the most common signs of full anal glands in dogs is scooting, dragging or rubbing their bottom on the floor to relieve irritation. Many owners mistake this for worms, but it’s usually a sign of anal discomfort.
Other clear signs to watch for include:
Behavioural signs:
Scooting or dragging their bum on the floor.
Sitting down abruptly or refusing to sit.
Suddenly turning to look at their rear or chasing their tail.
Straining or showing pain when passing stools.
Licking or chewing at their back end, rump, or legs.
Physical signs:
A strong, fishy or foul smell from their rear.
Swelling, redness, or a visible lump around the anus.
Brown, grey, greenish-yellow, or blood-tinged discharge from the anal area.
Fur loss or red skin around the rump from persistent licking or chewing.
If left untreated, full anal glands can cause infections, abscesses, or even rupture. This can be extremely painful, so always speak to your vet rather than trying to express them yourself - unless you have been trained to do so.
Are any breeds at increased risk?
We see anal gland issues much more commonly in small breeds, due to their conformation. They seem to be more prone to narrow openings of the anal glands. Obese dogs are also at higher risk. This is thought to be due to them having weaker muscles.
It is relatively uncommon for larger breeds to suffer with chronic anal gland issues, but it certainly happens.
Pedigree dogs are at highest risk. This is likely due to the fact that atopic dermatitis (allergies) is more common in these dogs and anal gland issues go hand in hand with atopy.
Do puppies need their glands expressed?
Just like older dogs, a puppy’s anal gland shouldn’t cause them any pain, discomfort or distress unless they need emptying. If your puppy’s suffering from full anal glands, they may display the same symptoms as older dogs including scooting, licking the area, straining when pooping or a strong, fishy odour.
However, you should also note that these are also symptoms of food allergies or worms since puppies very commonly contract worms.
If you suspect your puppy has worms, be sure to check their poop for any white flecks or spaghetti-like worms, and speak to your vet for worming treatment and advice. To find out more about treating your puppy for worms, check out our article; ‘ Identifying and treating worms in puppies ’.
If you suspect that your puppy needs their anal glands expressed, be sure to contact your vet. You could follow the aforementioned advice to do it yourself at home, but with a puppy being so small and wriggly, taking them to a vet will be easier and ensure a safe procedure.
How to express dog anal glands
Anal glands will need to be squeezed and emptied if they are impacted. This is something owners can be taught to safely do at home. We should only empty glands that require emptying; if the dog has no anal gland issues, there is no need to empty them.
When emptying glands at home, prepare yourself before getting your dog. Make sure you have disposable gloves, paper towel and some lubricant such as KY jelly or Vaseline.
The easiest place to empty glands is in the bath! Ideally you would have one person holding the dogs shoulders forward and praising them. They can also reward them with high value treats las they stay calm.
If you imagine the anus is a clock face, each gland is located at 4 and 8 o'clock. Gently insert your thumb into the anus, steadying the anal gland with your pointer finger, which will be on the outside of the anus.
Squeeze with firm pressure, releasing all of the contents onto a tissue. You will feel the gland shrinking from the size of a grape to a small 'empty balloon'.
As this can be a strange sensation, your dog may try to run or jump, so ensure they are being held firmly.
Reward your dog. You are done!
Many owners are (understandably) not confident to empty the glands at home and this is always something a vet will be happy to do. Some dogs require their glands to be emptied very regularly (every 4 to 6 weeks), while others may only need it a few times in their life.
If there is an infection, the dog will need a course of antibiotics and anti inflammatories.
A dog who is licking at their back end due to the discomfort should be given a buster collar to protect the surrounding skin and tissue.
Uncommonly, surgery is needed to treat ongoing anal gland issues, particularly if they cannot be managed medically and are significantly affecting a dog’s quality of life.
How can you prevent dog anal gland issues?
Thankfully, there are lots of things we can do to help prevent anal gland issues. This includes:
Feeding a high quality diet with ample fibre and supplementing the diet with fibre if needed. This helps keep the stool solid, ensuring the glands are naturally expressed when the dog passes stool.
Providing ample exercise. Not only will this prevent a dog becoming over-weight, exercise aids in gut health and helps promote healthy bowel movements.
Preventing obesity. Consider a slimming diet such as Pooch & Mutt’s Slim & Slender if your dog is over weight. This high fibre weight loss diet helps stave off hunger and can speed up weight loss.
Schedule regular check ups. You can ask your vet to check your dog’s glands during their routine checks and you may also need to book them in for regular ‘anal gland checks’.
FAQs
How do you know if your dog needs their anal glands expressed?
Your dog will usually let you know something is amiss by scooting their bum along the ground and stopping abruptly to look quickly at their back end. They may also lick or chew obsessively at their back end.
What happens when a dog’s anal glands are full?
Full anal glands cause discomfort and can quickly become infected, leading to an abscess forming. If not treated on time, the abscess can burst out onto the skin.
How often should you express dogs’ anal glands?
Most dogs never need their glands expressed. The fluid is released naturally when they pass stool. However, some dogs will need their glands emptied for them. This can be an infrequent occurrence (once or twice a year) or something that is done every 4-6 weeks. It all depends on the individual.
We are feeding Dakota kibbles and bits is there a better food that would help with her anal glands
Hi Joyce, You may find changing Dakota to a high fibre diet helps with their anal gland troubles. If they are over weight, our slim and slender may be the most appropriate. If they're a healthy weight, Health & Digestion may be best, as it contributes to a firm stool, which helps in the natural expression of the glands. If you have any questions, reach out to the team on pooch@poochandmutt.com
Hi, my Cockapoo is 8yrs old and suffers with his anal glands, we have to get them emptied every 4 weeks. He is fed pooch and mutt healthy digestion dry food also the turkey and duck wet food. Can you help with anything else we could feed him to help with his anal glands. Thank you
Hi Lynn, it might be worth adding in some of our Bionic Biotic supplement to see if this helps with their anal gland trouble, to help firm up the stools and also help with digestion, along with the benefit of additional prebiotics to aid in gut health. :)
We have a 3 year old red fox labrador. We are having to empty his anal glands every 4 weeks, usually get a sign of a fish smelling odour/discharge. Is this normal? Is there anything we should include or exclude from his diet? Greg
My 1 year and 5 month puppy, as her anal gland empty today. How long will the discomfort last
Hi I have a 10 month old pocket bully female and she was on a raw diet but started refusing to eat it. She is now on kibble and meat. She has solid toilet everyday but she let's of her anal glands nearly everyday and will do it anywhere ie sofa, car etc. I have ordered her some fibre and help would be good please 🙏
Hi Gregory, It all depends on the individual and some dogs do need their anal glands expressing every 4-6 weeks. We would advise ensuring they are on a high fibre diet such as our Health & Digestion dry food, which contributes to firm stools and the natural expression of anal glands. :)
Hi Keisha, Your pooch should only feel discomfort for around 24 hours, any longer than this we would advise speaking with your vet. :)
My dog had a smelly discharge, some leakage, occasional scooting. Took her to the vet today and she has one infected gland. She was prescribed an antibiotic, should I have asked for anti inflammatory meds too? We have a great veterinarian, I just worry about discomfort. She’s had the smelly discharge for a couple weeks so I’m worried she’s been in pain this whole time. The only reason she only saw her vet today (two to three weeks after i noticed the scent) is because we couldn’t get an appt two weeks ago due to holidays. But now I’m worried she may be in pain. She got her first dose of flagyl a few hours ago.