Digestion & Gut

French Bulldog Anal Gland Problems: The Diet and Fibre Fix

By Alessa Grimm · Pet Nutritionist · Author of Healthy Frenchies

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The scooting across the rug. The sudden, urgent attention to their own bottom. That smell, which you would recognise anywhere now and rather wish you would not. And the standing appointment at the vet or groomer every six or eight weeks, forever.

Here is the good news, and it is a nice change from the last two articles I have written. This is a problem where the bowl genuinely is the lever. Not the whole answer, but a real one.

What the Glands Are Actually For

Your Frenchie has two small sacs sitting just inside the anus, one either side, each holding a strong smelling fluid that is essentially a scent signature. In an ideal world they empty a little every time your dog passes a stool, which is why dogs are so interested in each other's leavings.

The emptying is mechanical. A firm, bulky stool presses on the sacs as it passes and squeezes them out, the way you would squeeze a tube of toothpaste. That is the entire mechanism, and everything else in this article follows from it.

So when the stool is soft, loose or small, there is nothing pressing. The sacs do not empty. The fluid sits there, thickens, and becomes harder to shift, which makes the next emptying even less likely. Left long enough, an impacted sac can become infected and abscess, which is genuinely painful and needs a vet rather than a spoon of pumpkin.

Why Frenchies Are on the Wrong End of This

You are not imagining that your breed struggles with this more than others.

A VetCompass study of anal sac disorders across 104,212 UK dogs found a one year period prevalence of 4.40%, and when the researchers looked at what raised the risk, flat faced breeds had 2.62 times the odds of an anal sac disorder compared with long faced breeds. Several small breeds came out high as well, with the Cavalier King Charles Spaniel at 3.31 times the odds of a crossbred dog.

So being small and flat faced puts your Frenchie in the wrong column twice over. That is not a failure of your care. It is the shape of dog you fell in love with.

Now the honest part, because I would rather you heard it from me. The same body of research is candid that this area is thinly studied. Diarrhoea, diet and obesity have been proposed as triggers since roughly the 1970s on fairly limited evidence, and understanding has not fundamentally moved on since. The mechanical logic of firm stools is sound and widely accepted, and the risk factors above are properly measured. But if you find someone online promising a specific supplement will cure anal gland disease, they are considerably more certain than the evidence is.

What to Actually Change in the Bowl

The target is not a particular ingredient. The target is a firm, well formed stool that holds its shape. Everything below is just a route to that.

Get the calcium right. This is the one most owners miss. In a fresh diet, bone content is what firms a stool up. Roughly 10 to 15% raw meaty bones, or 5 to 10 g of bone meal per 1 kg batch if bones are not for you, is the difference between a stool that holds together and one that does not. Too little and things stay soft. Too much and you swing to constipation, which is its own problem, so this is a dial rather than a switch.

Add gentle fibre. A spoon of cooked, mashed pumpkin is the easiest starting point and the one I reach for first, though it is gentler than most people realise. A small amount of psyllium husk mixed with water is the stronger option. Add one at a time, introduce it gradually, and make sure your Frenchie is drinking properly, because psyllium needs water to work.

Find out what is loosening things. If the stools are chronically soft, that is the actual problem and the glands are just where you noticed it. Simplify the diet, feed consistently, and work out whether something in the bowl is not agreeing with your dog. Feeding a sensitive stomach covers the general version, and if the loose stools travel with itching or ear trouble, a proper elimination diet is how you find the culprit.

Keep them lean. Excess weight around the rear changes the geometry and reduces the pressure reaching the sacs, and obesity turns up repeatedly as a risk factor. My free Food Amount Calculator will give you the daily amount to work from, and the feeding guide explains how to judge body condition by hand.

Change food slowly. Over one to two weeks. An abrupt switch loosens stools, and loose stools are the exact thing you are trying to avoid here.

The Expression Question

Many Frenchie owners end up on a schedule: glands emptied every six weeks at the groomer, indefinitely, whether or not there are symptoms.

I would gently push back on that as a default. The sacs are delicate structures, and repeated handling of glands that did not need emptying can irritate them. Favouring natural emptying, by getting the stool right, is the better goal where it is achievable.

To be clear about what I am not saying: if your vet has examined your dog and asked for regular expression, follow that. Some dogs genuinely need it, and an impacted gland needs emptying by someone who knows what they are doing. What I am questioning is the automatic six weekly appointment for a dog with no symptoms, particularly when nobody has asked why the glands are not emptying on their own.

The useful question to bring to your vet is the same one from the ear article: not "can you empty them", which they will do perfectly well, but "why are these not emptying by themselves".

When It Needs a Vet, Not a Recipe

Please do not manage any of the following with diet. Book an appointment.

• A swelling or lump beside the anus
• An open, weeping or bleeding area there, which may be a burst abscess
• Blood or pus, or a discharge that is not the usual
• Obvious pain when sitting, or when the area is touched
• A dog who is subdued, off their food, or licking constantly at the area
• Scooting that is new and persistent, since it can also mean worms, itchy skin or something caught in the fur

An impacted gland that abscesses is one of the more uncomfortable things a dog goes through, and it is far easier to treat early.

Anal Gland Questions I Get Asked

Why does my French Bulldog keep having anal gland problems? Usually because the stools are not firm enough to empty the glands on the way past. The sacs are designed to be squeezed by a bulky stool as it passes, so soft or loose stools mean the glands are never properly emptied and the contents thicken. Being flat faced, carrying extra weight, and having ongoing skin allergies all raise the risk on top of that.

Are French Bulldogs more prone to anal gland problems? Yes. In UK primary care records covering 104,212 dogs, flat faced breeds had 2.62 times the odds of an anal sac disorder compared with long faced breeds, against an overall one year prevalence of 4.40%. So this is not you doing something wrong. It is a known feature of the shape of dog you have chosen to love.

What food helps a dog express their anal glands naturally? Whatever produces a firm, well formed stool for your particular dog. In practice that usually means adequate bone content or a bone meal equivalent for calcium, a simple diet without the ingredient that is loosening things, and a little added fibre such as cooked mashed pumpkin or psyllium husk. Firm stool is the goal. The food is just how you get there.

Should I add pumpkin or psyllium for anal glands? Both are reasonable and both are gentle. A spoon of cooked, mashed pumpkin is the easiest starting point, and a small amount of psyllium husk mixed with water is the stronger option if pumpkin alone is not enough. Add one at a time so you can tell what worked, introduce it gradually, and make sure your dog is drinking well, since psyllium in particular needs water to do its job.

Does my Frenchie need their glands expressed regularly? Only if your vet says so for your individual dog. Routine expression on a schedule, for a dog with no symptoms, is not something I would ask for. The glands are delicate and repeated handling can irritate them. If your Frenchie genuinely needs regular emptying, that is worth treating as a signal to work on the underlying cause rather than as a permanent grooming appointment.

Is scooting always an anal gland problem? No, and it is worth checking rather than assuming. Scooting can also come from itchy skin around the rear, from worms, from a sore or infected area, or from something caught in the fur. Persistent scooting deserves a look from your vet rather than a guess, particularly if it is new.

Can food allergies cause anal gland problems? Indirectly, in two ways. A food reaction that produces loose stools removes the pressure that empties the glands. And the lining around the sacs is skin, so a dog with allergic skin disease can have inflammation there like anywhere else. If your Frenchie has gland trouble alongside itching, paw licking or recurring ear infections, treat it as part of one picture rather than a separate plumbing problem.

When is an anal gland problem an emergency? See your vet promptly if there is a swelling beside the anus, an open or weeping wound there, blood or pus, obvious pain when your dog sits or is touched, or if they are off their food and subdued. An impacted gland can abscess and burst, which is painful and needs treatment rather than more fibre.

Simple Takeaway

Anal glands empty when a firm stool presses on them, so the whole job is producing a firm stool. Get the calcium right, add a little pumpkin or psyllium, find and remove whatever is loosening things, keep your Frenchie lean, and change food slowly. Flat faced dogs carry over two and a half times the risk of long faced ones, so if this keeps happening it is your dog's build rather than your failure. Be cautious about routine expression for a dog with no symptoms, and ask your vet why the glands are not emptying rather than only asking them to empty them. And anything swollen, bleeding or painful skips the bowl entirely and goes straight to the vet.

Read next: gut health and probiotics, and whether they actually earn their place in the bowl.

This article sits across two hubs: The Complete French Bulldog Feeding Guide for what belongs in the bowl, and The Complete French Bulldog Allergy Guide if the gland trouble travels with itching.

You’re already doing an amazing job. This is just here to help.
With love, Alessa xx ♥

Alessa Grimm, Pet Nutritionist

Alessa studied pet nutrition in Germany and shares her life with two French Bulldogs, Audrey and Raphy. She is the author of Healthy Frenchies: The Complete Guide to Nutrition and built the free Food Amount Calculator used by Frenchie owners worldwide.