Why Is My Dog Pooping in the House? Causes and Practical Next Steps
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By Dr Duncan Houston
Finding faeces indoors is frustrating, especially when your dog has been reliably toilet trained. Treat the accident as information about a changing need, not a reason to punish. The first question is whether your dog could comfortably reach an appropriate place and control the bowel movement.
Quick Answer
Dogs may defecate indoors because of diarrhoea or urgency, pain or poor mobility, incomplete training, insufficient access, fear or other behavioural changes. A new pattern in a previously trained dog deserves a veterinary review, particularly with abnormal stools or illness. Restore frequent, calm toilet opportunities and reward success without scolding accidents.
Look at the stool and the circumstances
Note whether the stool is formed, soft, watery, unusually hard or contains blood or mucus. Record the time and whether your dog seemed aware of passing it. An accident while sleeping suggests a different problem from squatting beside a closed back door.
Track meals, outdoor trips, recent food changes, medication and any change in household routine. If accidents happen only while you are away, a brief recording may show distress, but do not prolong an absence just to collect evidence.
| Pattern | Possible contributor | Next step |
|---|---|---|
| Loose stools and sudden urgency | Digestive illness, dietary indiscretion or parasites | Contact your vet and discuss stool testing |
| Formed stool near an exit | Insufficient access or missed signals | Increase predictable toilet opportunities |
| Difficulty using steps or squatting | Pain or reduced mobility | Arrange assessment and provide an easier route |
| Soiling while alone with pacing or vocalising | Possible separation-related distress | Seek a tailored veterinary behaviour plan |
| Passing stool without apparent awareness | Possible continence or neurological problem | Book a veterinary examination |
Rule out medical causes
Parasites, infections, food-responsive disease and other intestinal problems can make defecation more urgent. Constipation or painful defecation can also disrupt normal habits. A dog with arthritis may avoid a slippery floor, a long walk or the steps to the garden.
Older dogs may have sensory or cognitive changes, but age alone is not a diagnosis. Neurological disease and anal or rectal problems can affect control. Your vet may recommend a physical and neurological examination, a faecal test or further tests based on the pattern.
Cornell’s diarrhoea guidance explains that stool changes have several potential causes. Do not repeatedly switch foods, give extra worming doses or use human anti-diarrhoeal medicine without advice.
When it needs urgent care
Seek urgent veterinary help for repeated vomiting, marked weakness, a painful or swollen abdomen, black tarry stools, substantial bleeding or inability to pass stool with distress. A puppy with diarrhoea and lethargy should be assessed promptly, especially if vaccination is incomplete.
Repeated straining may actually be an attempt to urinate. If your dog is producing little or no urine, contact an emergency vet immediately. Do not assume every crouched posture means constipation or attempt a home enema.
Rebuild the toilet routine
- Offer more opportunities. Take your dog out on waking, after meals and at times suggested by the accident record. Add a late trip if overnight accidents are occurring.
- Go with them. Choose a quiet, accessible area and allow time to settle. Garden access alone does not show whether they toileted.
- Reward promptly. Give calm praise and a suitable small reward immediately after they finish outside.
- Supervise indoors. Watch for sniffing, circling or moving towards the usual accident area. Guide them out calmly when possible.
- Clean without confrontation. Remove faeces and use a pet-safe cleaner suited to the surface. Keep pets away until the area is safe and dry.
The RSPCA Australia toilet-training guidance emphasises timely rewards and avoiding punishment. Scolding after the event does not explain where to go and may make your dog hide toileting from you.
Make the environment fit the dog
For a dog with mobility problems, improve traction, lighting and access to a nearby toilet area. Ask the vet about pain control and whether a ramp or alternative surface would help. In severe weather, provide a sheltered option rather than expecting your dog to tolerate fear or discomfort.
A pen or gated area can support supervision, but it should not force a dog to hold on beyond their ability. Do not use a crate to contain diarrhoea or panic. If you are away too long for your dog’s needs, arrange a trusted helper or an appropriate toilet arrangement.
When anxiety plays a part
Fear of storms, traffic, other animals or the outdoor environment may prevent toileting until your dog returns indoors. Changes in routine can also contribute. Work on safety and gradual confidence rather than forcing exposure.
The RSPCA’s separation-related behaviour advice describes signs that warrant professional help. An accident during an absence does not by itself prove separation anxiety, and medical causes should still be considered.
Frequently asked questions
Is my dog doing it because they are angry?
Revenge is not a useful explanation. Look for urgency, access, discomfort, learning or distress.
Should I reduce food or water to prevent accidents?
No. Keep an appropriate feeding routine and normal water access unless your vet gives specific instructions.
Can an adult dog be toilet trained again?
Yes. Many benefit from returning to consistent, rewarded practice while underlying problems are addressed.
Should I bring a stool sample?
Ask the clinic how to collect and store one. A fresh sample and an accident record can be useful.
A practical solution starts with the reason your dog is struggling. Medical care, easier access and patient retraining often need to work together.
For help organising your dog’s accident pattern and planning questions for their vet, visit ASK A VET™.
