Senior dog
Most cases of senior dog incontinence are treatable, often cheaply. Here's what's actually causing it, what your vet will look at, and what works at home.
You wake up to a wet bed. Or you come downstairs to a puddle in the kitchen. Or you're sitting on the sofa and your dog gets up, leaving a damp patch behind without seeming to notice.
It's distressing. For your dog, who's been house-trained for years and clearly didn't mean to. For the household. For the dog walker who arrives to find that something happened in the lounge. And — quietly — for the relationship, because someone has to clean it up and that someone tends to be the same person every time.
The good news, and we want to lead with it: most senior dog incontinence is treatable. Often very treatable. Often cheaply. The first step is getting to the vet — not for sympathy, for the actual diagnosis. Because there are at least eight different causes of incontinence in older dogs, and the right answer depends on which one you have.
This guide is what to do, in roughly the order to do it.
Three things to know up front:
This matters because the causes and the treatments are completely different.
Incontinence is involuntary. The dog leaks urine (occasionally faeces) without realising. Often happens during sleep — wet bedding, wet patch on the sofa where they were lying. The dog is genuinely unaware. They're not asking to go out and giving up; the urine is just escaping.
Accidents are deliberate (in the sense that the dog is awake and aware) but for a non-deliberate reason. The dog needed to go and either couldn't get out, didn't ask, didn't make it in time, or has lost the ability to "hold it" between trips outside.
Both happen in older dogs. Both need addressing. But the diagnosis is different and the fix is different.
A useful distinction at home: if your dog is leaving wet patches where they lie down (their bed, the sofa cushion they nap on), that's almost always incontinence. If the puddle is on the kitchen floor or hallway and the dog is standing nearby looking embarrassed, that's almost always an accident.
Many senior dogs eventually have both. They get treated separately.
Let's walk through them in roughly decreasing order of how often they're the answer in UK senior dogs.
The most common cause of incontinence in senior female dogs. The muscle ring that holds urine in the bladder weakens, particularly during sleep when the dog is fully relaxed. Result: leaking from the bed, often discovered in the morning.
USMI is dramatically more common in spayed females (about 5–20% of spayed females develop it at some point) than in entire females or males. The hormonal changes after spay are part of the cause.
Treatment is usually phenylpropanolamine (PPA, brand names Propalin or Urilin) — a daily liquid given orally. It strengthens the sphincter muscle. Around 80% of dogs respond well within a week. Costs around £10–£15 per month.
If your female dog is leaking from her bed, USMI should be the first thing your vet rules in or out.
Surprisingly common in older dogs and easily mistaken for incontinence. UTIs cause frequent urgent peeing — the dog asks to go out, goes a tiny amount, asks to go out again ten minutes later. They may also leak small amounts because they can't hold it.
Treatment is a course of antibiotics, usually 7–14 days, after a vet runs a urinalysis. Costs around £30–£60 for the consult plus the medication.
A urine sample at the appointment is the fastest path to a diagnosis. Your vet will tell you how to collect one (clean container, midstream catch, kept refrigerated until the appointment).
Often presents as "she suddenly seems to be drinking and peeing a lot more." More water in, more urine out, sometimes overflows the dog's ability to hold it. Diabetes in older dogs is common, treatable, and well-tolerated for years with daily insulin injections.
A blood test at the vet (usually fasted) confirms or rules out. If positive, your vet walks you through the management — daily insulin, dietary adjustment, regular bloodwork. The first few weeks are intensive; after that it's a stable routine.
Like diabetes, Cushing's increases thirst and urination. It's caused by the body producing too much cortisol. Other signs: pot-bellied appearance, hair loss, increased panting, muscle weakness.
Diagnosed via specific blood tests. Treatment is daily medication (usually trilostane), which most dogs tolerate well. Costs vary but typically £40–£80 a month.
Older dogs commonly develop chronic kidney disease, which makes them less able to concentrate urine. Result: more dilute urine in larger volumes, sometimes overflowing into nighttime accidents.
Diagnosed via blood tests (urea, creatinine, SDMA) and urine specific gravity. Treatment depends on stage — diet changes, sometimes medication, monitoring. Catching it early extends comfortable life considerably.
Dogs with canine cognitive dysfunction sometimes lose the awareness or memory of asking to go out. They may toilet indoors without seeming to notice, or stand by the wrong door, or forget the routine entirely.
This is more "accidents" than "incontinence" in the strict sense, but it presents similarly to owners. Treatment is the same as for cognitive dysfunction generally — diet, supplements, sometimes medication — plus more frequent prompted toilet trips.
A dog with arthritis who can't get up easily can't ask to go out. They may try, fail, give up, and toilet where they are. This isn't incontinence at all — it's pain limiting them. The fix is pain management (see Galliprant vs Librela vs Onsior) plus practical adjustments (a closer toilet route, ramps if there are stairs).
Less common but worth ruling out. Spinal injuries, intervertebral disc disease, or degenerative myelopathy can affect bladder control. Usually accompanied by other neurological signs — weakness in the back legs, dragging paws, knuckling. Diagnosed via vet exam and sometimes imaging.
If your dog has started leaking or having accidents, here's the order:
Note: when it happens (time of day, awake/asleep), where (bed, hallway, while walking, on the sofa), how much (a few drops vs a puddle), what else seems different (more water drinking, more frequent peeing on walks, any changes in mood or appetite).
This log is the single most useful thing you can bring to the vet appointment. It often tells the story before the vet has examined the dog.
Most vets will want a fresh urine sample. Tips:
This is not "wait and see." Most causes need a real diagnosis to treat. Booking sooner means catching things like diabetes or UTIs early, when treatment is most effective.
When you book, mention "incontinence" or "house-soiling" specifically. Ask for a longer slot if possible (most practices offer 20-minute senior consultations) so there's time for the conversation.
While you're sorting the diagnosis:
Rough budget guide for the workup and common treatments:
| Item | Typical UK cost |
|---|---|
| Initial vet consult | £35–£60 |
| Urinalysis | £30–£50 |
| Blood panel (basic) | £80–£150 |
| Phenylpropanolamine (USMI) | £10–£15/month |
| Antibiotics for UTI | £20–£50 for course |
| Diabetes management (insulin + supplies) | £50–£100/month |
| Trilostane (Cushing's) | £40–£80/month |
| Kidney diet (e.g. Hill's k/d) | £55–£70/month |
A typical incontinence workup costs £150–£250 to get to a diagnosis. Treatment then varies enormously by what's causing it.
If the medication is going to be a long-term thing, you have the right under the 2026 CMA reforms to request a written prescription and fill it at any UK pharmacy. For Cushing's and diabetes meds specifically, this often saves £20–£40 a month.
Things that quietly improve the household experience:
For most dogs, the diagnostic + treatment cycle resolves the worst of it. Some dogs continue to have intermittent accidents. A subset of senior dogs reach a point where the incontinence is part of a broader decline that the household has to discuss honestly.
Useful framing: incontinence on its own isn't a quality-of-life ceiling. A dog with USMI on PPA is the same dog they were before. A dog with diabetes well-managed lives years. But incontinence combined with mobility loss, cognitive decline, hygiene that's getting hard to maintain — that's a different conversation. The HHHHHMM scale is the framework to think about it with. Hygiene is one of the categories explicitly.
If you find yourself bathing your dog daily, changing bedding multiple times a day, and finding it hard to maintain dignity — that's information. Not a verdict, but information that's worth bringing into the bigger picture conversation.
If your dog has started leaking or having accidents:
Why has my spayed female suddenly started leaking? Almost certainly USMI — a hormonal effect of the spay catching up many years later. Very treatable with phenylpropanolamine. Get to the vet.
Is incontinence painful for the dog? The leaking itself isn't, but if there's a UTI or kidney issue underneath, those can be uncomfortable. The dog is also often distressed about the social fact of it — they know they've broken the rules even if they couldn't help it.
Can dog incontinence be cured? Some causes can be cured (UTIs, with antibiotics). Most are managed long-term with daily medication. Cure vs management isn't usually the question that matters; what matters is getting the dog comfortable and the household functioning.
Should I rehome a dog with incontinence? Almost never the right call. With diagnosis and treatment, the vast majority of incontinent dogs become liveable-with again within weeks. If you're feeling overwhelmed, that's worth talking to your vet about — there are practical steps that help.
At what age does this typically start? USMI most commonly appears 3–10 years after spay. Other causes track with general ageing — most show up from age 8 onwards, more frequently with each year after.
Is this covered by pet insurance? Probably yes if you have a lifetime policy you've held continuously. Probably not on a new policy if the underlying condition (USMI, diabetes, Cushing's) was already diagnosed when you took out the policy.
Superkin makes the diagnostic conversation easier by giving you the data without the chore of writing it down. Each accident or leak gets logged in seconds — anyone in the household can do it. The Sunday plan flags the pattern (frequency rising, time-of-day pattern, any other senior signs converging) so you walk into the vet with a clear two-week story rather than a vague "she's been having more accidents lately." For households juggling medication routines on top, the medication tracker means nobody forgets the morning dose.
Related guides:
Last updated 26 May 2026. This guide is general information and not a substitute for veterinary care. Persistent incontinence always warrants a vet visit.
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