Problem behaviors
How to stop a dog from peeing in the house
The dog that pees in the house is four different dogs, a sick one, an untrained one, a marker and an anxious one, and our trainers sort them in that order because the first one is the vet's and the last one is not a potty problem at all. Here is the method for each.
Last reviewed September 11, 2026 · by the Best Dog University Team
Why it happens
Sick, untrained, marking or anxious, and the pattern tells you which.
A house-trained dog that suddenly starts peeing inside is often unwell, and a urinary infection, a hormonal change in an older spayed female, diabetes or arthritis that makes the door too far are all common; the vet comes first. A dog that pees in the house in large amounts, on horizontal surfaces, at predictable intervals, was never house trained or learned that indoors is fine in a kennel or on pads, and the schedule fixes it. A dog that lifts a leg and leaves small amounts on vertical surfaces, furniture legs, door frames, the new couch, is marking, which is a territorial and hormonal behavior more than a bathroom one. And a dog that pees only when left alone, or that dribbles when greeted, is anxious or excited, and neither is fixed by the schedule.
- Sudden, in a trained dog: the vet
- Large amounts, horizontal, predictable: untrained
- Small amounts, vertical, leg lifted: marking
- Only when alone, or when greeted: anxiety or excitement
The method
Seven steps, the same as a puppy's, for two weeks.
Once the vet has ruled out a medical cause, the dog is treated as a puppy for a fortnight whatever its age. Choose one spot, one cue word and an enzyme cleaner.
A veterinary visit first for any dog that is new to peeing inside, is older, is drinking more, or is straining
Out on a leash to the one spot every two hours and after every meal, nap, drink and play, with the cue word said quietly as the dog starts
A reward the instant it finishes, at the spot, and a short walk as a second reward; back inside with no play if nothing happens in five minutes, and out again in fifteen
A crate or direct supervision between trips: a leash clipped to your belt is the simplest supervision in the house
Every accident cleaned with an enzyme cleaner, never ammonia, with a note of the time and place to find the gap in the schedule
Freedom one room at a time after a clean week, with a camera, and the room closes again after a mistake
For marking: the same schedule, the marked spots cleaned and blocked, a belly band indoors for a week, and a conversation with your vet about neutering an intact male
The mistakes
Punishment, the open yard, ammonia, freedom too soon, and treating anxiety as a potty problem.
Punishing an accident, with a voice, a nose in it or a crate as a consequence, teaches the dog to pee where nobody sees, behind the couch and in the guest room, and a rescue learns that people are frightening. The open yard, the dog let out alone, produces a dog that plays, comes in and pees on the rug; the trips are on a leash to the spot. Ammonia cleaners smell like urine to a dog and mark the spot as a bathroom. Freedom on day three because the dog seems fine produces the accident that resets the fortnight. And treating an anxious dog that pees only when left, or a dog that dribbles when greeted, as untrained wastes the fortnight; the first is the separation page and the second is a calm greeting routine and a puppy growing up.
Pee pads in a house with a yard are the most common reason a six-month dog is still peeing inside, and they go.
- Never punish; the dog learns to hide
- The yard on a leash, never alone
- Enzyme cleaner, never ammonia
- No freedom until earned
- Anxiety and excitement are not schedule problems
- Pads go
Proofing around Houston
A week of rain, a hot patio, fire ants at the spot, and a rescue from the shelter.
Houston weather stretches the fortnight: a week of spring rain produces a dog that will not go in the wet and a family tempted by a pad, and the answer is an umbrella, the leash and a covered corner of the yard. Summer puts the trips at dawn and dusk where possible and on grass rather than a hot patio, and the spot is checked for fire ant mounds, because a dog that squats on one learns to fear the yard. A rescue from BARC or the county shelter has usually spent months in a kennel run and learned that concrete is a bathroom, and the rescue guides on this site cover the first month with the schedule inside it. Our trainers run the same schedule in the training home and hand it over written down.
- An umbrella and a covered corner, never a pad
- Dawn and dusk on grass in summer
- The spot checked for fire ants
- Kennel dogs learned concrete is a bathroom
When to call
A fortnight that has not worked, a marker that will not stop, or a dog that pees when left.
A dog that has failed two clean weeks of the schedule with the vet's all-clear usually has a gap in the schedule the family cannot see, and an in-home lesson at $220 finds it; some go into a Gold stay at $2,500, where the routine runs daily in a house with a trainer watching and comes home written down. A marker that will not stop after the schedule, the cleaning and the vet conversation is a structure case, and place, the crate and a rule about which rooms the dog is in fix most of it. A dog that pees only when left alone is an anxiety case, on the separation page, and a Platinum stay at $3,750 builds the foundation for that plan. The adult house training guide on this site is the companion to this one.
The programs
Programs that run the schedule.
Lessons at home to find the gap, Gold for the dog that needs the routine run daily, Platinum for the anxious dog that pees when left.
Asked and answered
Questions people ask about this.
Why is my house-trained dog suddenly peeing inside?
Often a medical reason: a urinary infection, a hormonal change in an older female, diabetes or arthritis that makes the door too far. The vet comes first. A move, a new baby or a new dog can also produce it, and the two-week schedule fixes that version.
How do I stop my dog marking in the house?
The same two-week schedule, the marked spots cleaned with an enzyme cleaner and blocked, a belly band indoors for a week so marking cannot be rehearsed, structure about which rooms the dog is in, and a conversation with your vet about neutering an intact male. Marking usually eases within a fortnight.
Should I rub my dog's nose in it?
No. It teaches the dog to pee where nobody sees and that hands are frightening, and it teaches nothing about where to go. Use the enzyme cleaner, write down the time so you can see where the schedule slipped, and tighten it.
My dog only pees inside when I leave. Is that house training?
Usually not. A dog that is clean when you are home and pees when you are gone is often anxious, and a camera shows the pacing and whining that go with it. That is the separation anxiety plan, not the schedule. A dog that dribbles when you come home is excited, and a calm greeting routine fixes that.
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The vet first, then two weeks as a puppy.
Tell our team where and when your dog pees inside. The free phone consultation is a direct call.