Behaviour
A few drops on the sofa, on a friend's handbag, on the new door. Marking is a deliberate message, and you work on it differently from house soiling.
Worth knowing. Small, frequent wees, straining, blood or a very strong smell, great thirst, or a sudden start in a dog who has never marked can mean a urinary infection, stones, prostate trouble or other illness. Before any plan, take him to your own vet.
Your two-year-old male has been clean in the house since he was a pup, and this week he started cocking his leg on the corner of the sofa. Or a friend popped round, left her handbag in the hall, and ten minutes later the bag smelt of dog. Or you moved house and he has "signed" every door in the new place. A puppy who has not worked out where to go leaves puddles. This is different: a few drops, placed high, on chosen things, with a purpose. That is marking, and you work on it differently from ordinary house soiling.
To a dog, urine is a note left for others: who came by, male or female, in what state, how recently. Marking outside is completely normal. Sniffing walks, where he reads everyone else's notes and leaves his own, are a big part of his life and you should not take them away. The trouble starts when the notes end up on your furniture.
You can usually spot marking. The amount is small and it goes on something upright, such as the corner of a cupboard, a door, a curtain or a table leg, at roughly the height of a raised leg. The target is often new or smells unfamiliar: a bag, a visitor's shoes, a pushchair, a sofa that has just been delivered, the shopping. And it happens right after a walk, when his bladder is nearly empty. When he properly wees, he empties his bladder, and usually on the floor.
These are the situations where it shows up, starting with the one we see most often:
Bitches mark as well, and so do neutered males. Less often, but it happens.
The first mistake is telling him off afterwards. You find the stain an hour later and scold him. He has no way of linking your raised voice to something he did an hour ago; he links it to you standing next to the stain. What he learns is to mark when you are out of the room.
Rubbing his nose in it is worse. It teaches him nothing about where he is allowed to go and plenty about keeping away from you. A dog who marks because he feels unsure will mark more once you have frightened him as well.
Then there is the cleaner. A lot of household products contain ammonia, and to a dog ammonia smells a lot like urine. The patch you scrubbed so carefully turns into an invitation.
Plenty of owners put all their hope in neutering and change nothing else. In many males it does cut marking down, but not in all of them and not overnight, especially when the habit is well established. Without a thorough clean and changes at home, many carry on.
The last one is relying on a belly band. A fabric wrap for males stops urine reaching the furniture and is fine for a short while, say when you have guests. He learns nothing from it, though. If he wears it all the time, the problem is still there; you just cannot see it.
Urinary infections, bladder stones, prostate trouble, diabetes and kidney disease can all look exactly like marking: small, frequent wees in odd places. So the first trip is to your vet. The signs that should get you there quickly are in the medical section further down.
Find every spot, not just the ones you know about. A UV torch in a dark room shows up old stains that dried long ago. Use an enzyme cleaner made for pet urine on each one: the enzymes break down what is left of the urine and get rid of the smell rather than covering it with perfume. Leave it on for as long as the label says, and on carpets and sofas do it again, because you usually need to. Ammonia and bleach stay in the cupboard.
Dogs do not mark where they eat, sleep or play. Once you have cleaned, move his bowl or his bed next to the problem corner for a few days. Hide treats there and let him find them. If that is not practical, block it off with a closed door, moved furniture or an upturned chair for at least a few weeks.
For the first few weeks he is either where you can see him or somewhere he has never marked, such as a particular room or his crate if he is used to one. Around the house you can keep him on a light lead clipped to you or to a piece of furniture beside you. When you see him sniffing hard at a corner and the leg starting to come up, interrupt him gently (say his name, clap softly, a cheerful "outside!") and take him out. On the first tree or post he marks outside, make a fuss of him and give him something tasty. Outside is where his notes belong.
If the marking started with a change (a baby, a second dog, the move), the change is the cause and the marking is how he is coping with it. A predictable day helps, as does a quiet quarter of an hour with you alone, long sniffy walks and a resting spot where nobody bothers him. If there is friction between two dogs or between the dog and the cat, we have separate guides for each.
In an entire male who marks a lot, neutering helps in many cases, and the sooner after the marking started, the better. There is no guarantee. The operation has other effects as well, which differ by breed, size and age, so make the decision with your own vet once you have gone through all of it.
| Day | What you do |
|---|---|
| 1 | Book the vet. Find every stain with the UV torch and clean each one with enzyme cleaner. |
| 1–2 | Block off the marked spots or move his bowl and bed there. Cover the windows he guards. |
| 2–7 | Supervise him all the time or keep him on a lead indoors; interrupt gently and go out; celebrate with him when he marks outside. |
| 3–7 | One long walk a day where he chooses where to sniff and where to mark. |
| 7 | Look at your diary: how many incidents, where, what happened just before. Whatever is left tells you the next step. |
These dogs go to the vet before any training plan:
Take your diary to the appointment, plus a sample of first-morning urine caught in a clean container.
Dogs who mark indoors often need more "correspondence" with the world of smells. A walk on a long line, where he picks the route, stops at every bush and leaves messages where he likes, meets that need outside, where it belongs. Treat-searching games played right beside the old marking spots also change what those corners mean to him: they become places where good things turn up rather than places to leave a note. Scent work will not stop hormone-driven marking on its own, but it makes it a lot easier to work on.
In an assessment we look at the house, the daily routine and how the animals get on. Marking nearly always has something to do with the dog's surroundings, and surroundings can be changed.
What dog owners search for most often on the internet about this problem, with the short answer.
Marking is a small amount, usually on something upright at leg-lift height, on new or strange-smelling things, and it happens even right after he has been out. Ordinary peeing empties the bladder, usually on the floor. A dog who wees large amounts everywhere has a house-training or a medical problem.
In many males it cuts marking a lot, especially if done soon after the habit started. Not in all of them, though, and not straight away. Without a proper clean and changes at home, some carry on. Neutering has other effects too, which vary by breed and size, so decide with your own vet.
An enzyme cleaner made for pet urine, left on for as long as the label says and repeated on carpets and sofas. The enzymes get rid of the smell rather than masking it. Keep ammonia and bleach away from it: ammonia smells like urine to a dog and draws him straight back to the same spot.
Because they smell strange, and he puts his own message over the new smell, especially if he is an entire male or unsure of himself. Visitors' bags, shoes and coats go in a cupboard or a closed room, and he meets visitors outside first, on a walk.
Yes, less often than males. Some bitches mark, mainly around their season, when a new dog arrives or when they are tense, and neutered males can mark as well. The plan is the same: vet check, enzyme cleaning, supervision, keeping triggers out of reach and patience.
A behaviour that appears suddenly or changes for no apparent reason can have a medical cause. For full details, consult your dog's own veterinarian.
They often come together: the same causes, plans that complement each other.
You take him out, he stands in the grass for ten minutes, you come in and he goes on the rug. House-training takes set times and a real fuss when he gets it right.
He asks to go out every hour, squats and passes a little, sometimes pink. Cystitis is the obvious guess, but stones and the prostate look the same at first.
The neighbour says before her first season, the breeder says in a year. The right timing depends on the dog, and recovery has clear rules worth knowing in advance.
They got on for a year and now they kick off at the door or on the sofa. People call it jealousy; we see a squabble over what they value, and often that is you.
An assessment session tells you where you stand and which plan makes sense for your dog. The behaviour programme then works step by step, reward-based only.