Coprophagia in dogs: why they eat faeces and how to reduce it
Medical and behavioural causes of coprophagia, what to rule out before correcting, managing the environment and teaching a trade instead of punishing.
- Audience
- Pet owners
- Species
- Dog
- Scope
- Valid everywhere
Watching your dog eat faeces, its own or another animal's, is disgusting and triggers an immediate urge to tell it off. Yet coprophagia is far more common than most owners think, and in the great majority of cases it does not come from stubbornness but from a mix of factors that need to be read in the right order. Some dogs do it because of a medical cause that drains nutrients or raises hunger, others out of boredom or through unintended learning tied to the owner's own reaction. Correcting without understanding where the behaviour comes from not only fails, it often reinforces it, because it turns faeces into a contested object worth swallowing quickly before someone takes it away. The starting point is therefore to tell the causes apart, not to suppress the effect.
First of all: rule out a medical cause
A dog that has always eaten normally and suddenly starts seeking out faeces is telling you something that deserves a check before any training. Several conditions increase appetite or reduce nutrient absorption, and in those cases coprophagia is a symptom, not a behaviour problem. Pushing correction while the cause stays active means fighting the effect and leaving the root intact.
- Intestinal parasites that drain nutrients and keep the dog hungry despite regular meals.
- Pancreatic insufficiency or malabsorption, which leave faeces still rich and palatable.
- Poor or badly balanced diets, or rations too small for the animal's real needs.
- Drugs that increase hunger, in particular some steroid based treatments.
- Conditions that markedly raise appetite, always to be assessed with targeted tests.
The most common behavioural causes
Once the medical side is ruled out, what remains are reasons tied to learning and management. These are the most common in puppies and in dogs that spend many hours alone or in dull spaces. Recognising which pattern is at play helps you choose the right intervention rather than trying everything at random.
| Pattern | How it shows | Direction of the intervention |
|---|---|---|
| Puppy exploration | The puppy tastes everything, faeces included, as part of discovering the world | Manage the environment and let it grow out, often self resolving |
| Nest cleaning | The mother cleans the puppies, a behaviour some dogs keep | Prompt removal, no punishment |
| Boredom and lack of stimulation | A dog left alone for long spells or in a bare yard | Enrichment, movement and mental work |
| Learned attention | The dog has learnt that approaching faeces brings the owner over | Remove the reaction, manage in silence |
| Anxiety or stress | Behaviour tied to isolation, confinement or punishment over house training | Reduce stress, review how toileting is managed |
One case deserves particular attention: the dog that was told off in the past for soiling indoors. Many animals learn from that experience not to hold on better, but to make the evidence disappear, and coprophagia becomes a way to avoid punishment. It is an example of how a wrong training method produces the very behaviour it was meant to remove.
Manage the environment before training
The rule that always works, whatever the cause, is to remove the opportunity while you work on everything else. A behaviour that cannot repeat does not consolidate, and every successful repetition makes coprophagia harder to switch off. Management is not the final solution but it is the base everything else rests on.
Pick up straight away, every time
The dog's faeces should be removed as soon as they are produced, in the garden as on a walk. Fewer opportunities means fewer repetitions.
Keep other animals' litter clean
Cat faeces are highly attractive to many dogs. The litter tray goes out of reach, on a raised surface or behind a barrier the dog does not clear.
Manage outings on the lead
At critical spots the lead lets you anticipate the move towards faeces and redirect before the dog reaches its target.
Do not leave the dog alone for long in a bare space
Boredom is a powerful driver. An environment with chewing and searching opportunities reduces the urge to seek out undesirable stimuli.
Avoid any theatrical reaction
Running, shouting or chasing turns faeces into a prize to win. Management is done quietly and calmly.
Teach a winning alternative
Management prevents the behaviour, but a dog that sees faeces needs something more convenient to do. This is where training comes in, and the reference method is to teach an incompatible, highly rewarding behaviour, so that in front of faeces the best choice becomes moving away towards you.
- Teach the trade first in a neutral setting: the dog leaves an object and gets something better, never having anything forced from its mouth.
- Build a strong recall, well paid, so the dog comes back even with interesting distractions around.
- On the walk, when the dog notices faeces, call and reward the return with something high value, before it approaches.
- Repeat until the association faeces equals a chance for a reward from the owner replaces faeces equals swallow fast.
- Fade the rewards only once the new pattern is stable across several different environments.
When to go back to the vet
Most puppy coprophagia resolves with growth and consistent management. In some cases, though, the behaviour persists or comes with other signals, and then it is better not to push on alone but to ask for a reassessment. The criterion is simple: if something beyond the coprophagia has changed, that is the priority.
- The dog eats much more than usual or always seems hungry despite correct rations.
- Weight loss, loose or altered stools, vomiting or coat changes appear.
- Coprophagia started suddenly in an adult that had never shown it.
- The behaviour comes with signs of anxiety, such as vocalising or destruction during time alone.
- Consistent management and training over several weeks produced no improvement at all.
Where there is significant anxiety or a deeply rooted pattern, support from a vet skilled in behaviour or a trainer who works with gentle methods speeds up results and reduces everyone's frustration. Asking for help is not a failure: it is the fastest way out of a problem that, handled alone, tends to become chronic.
Frequently asked questions
- My puppy eats its own faeces: should I worry?
- In a puppy, tasting faeces is part of exploring the world and in most cases it resolves with growth, provided you manage the environment well and do not turn the behaviour into a chasing game. It is still worth ruling out parasites with a stool test, because they are common in puppies and keep the animal hungry. Pick up promptly, avoid theatrical reactions and reward the return to you when the puppy moves away from the faeces.
- Do anti coprophagia supplements work?
- Products that make faeces less palatable help in some cases, but they act only on palatability and do nothing about the cause when it is medical or behavioural. They can be a support within a wider plan, not a solution on their own. Before relying on a supplement it is better to rule out medical causes with the vet and set up environmental management, because that part makes the difference over time.
- Why does my dog only eat the cat's faeces?
- Cat faeces are rich and highly palatable to many dogs, so it is no surprise they are a favourite target. The most effective solution is management: put the litter tray out of reach, on a raised surface or behind a barrier the dog cannot clear, and keep it clean. Removing the opportunity is faster and more reliable than any attempt at correction in the moment.
- Does telling the dog off make it stop?
- No, and it often makes things worse. Punishment after the fact is not linked to the behaviour the way we imagine, and with coprophagia it mainly teaches the dog to do it out of sight or faster. The work that succeeds makes another choice convenient, for example returning to the owner for a high value reward, rather than making the unwanted choice dangerous.
What to do next
Always start by ruling out a medical cause with the vet, especially if the behaviour appeared suddenly. Then remove the opportunity by picking up promptly and putting litter trays out of reach, and teach a rewarding alternative such as the trade and the recall. Avoid all punishment, which turns faeces into a contested object, and ask for help if nothing improves after weeks of consistent management.
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