Why Puppies Eat Poop: Causes, Health Checks and Practical Prevention

By Dr Duncan Houston

Watching a puppy eat faeces is unpleasant, but it does not automatically mean you have chosen the wrong food or trained them badly. Stool eating, called coprophagia, has several possible influences. The most useful response is to prevent access, check for other symptoms and teach an alternative routine.

Quick Answer

Puppies may eat faeces as part of scavenging, exploration or an established habit; the behaviour alone does not prove a nutrient deficiency. Pick up stools promptly, supervise toileting and reward your puppy for moving away with you. Arrange a veterinary check if it begins suddenly, becomes persistent or accompanies diarrhoea, poor growth, weight loss or unusual hunger.

Why does it happen?

Faeces can be interesting to a dog even when people find them repellent. Access, the presence of other animals and learned routines may contribute. An excited chase after a puppy grabs something can turn the event into a repeated game.

It is tempting to assign one explanation, such as missing vitamins or copying the mother, but evidence does not support a single universal cause. A survey study of canine coprophagia did not find a relationship with the main diet type and reported poor success with marketed deterrent products. Owner surveys have limitations and cannot diagnose your puppy, but they challenge the idea that supplements are an easy cure.

Stress and limited opportunities for appropriate activity can affect behaviour, yet eating stool is not proof of anxiety. Look at the broader pattern rather than assuming the puppy is trying to hide an accident or deliberately upset you.

When to investigate health or nutrition

A complete growth diet in an appropriate amount is important. Review the exact recipe, daily grams, treats and meal access with your vet. Competition at the food bowl or an unsuitable ration may need correction, but adding vitamins, digestive enzymes or extra meat without a diagnosis can unbalance nutrition.

Stool tests may be recommended as part of normal puppy care or because symptoms suggest parasites. Further tests depend on the findings. Not every puppy who eats faeces needs an extensive enzyme or hormone panel.

What are the risks?

Faeces can expose dogs to infectious organisms, although risks differ by organism and whether the stool is fresh or has contaminated the environment. Some parasite stages require time outside the animal before becoming infectious. Fresh stool should still be removed promptly.

The Companion Animal Parasite Council guidelines recommend timely waste removal, testing and appropriate parasite prevention. Eating wildlife or livestock faeces adds uncertainty about exposure. Ingestion of litter, soil, packaging or other material with the stool can create separate problems.

Tell your vet if a faecal sample comes from a puppy who eats other animals' stools; swallowed parasite material can complicate interpretation. Wash hands after cleanup and prevent licking of faces or open wounds. Do not use disinfectants or human mouthwash inside your puppy's mouth.

A practical prevention routine

1. Take the puppy out on a comfortable harness and lead so you can supervise without crowding them.
2. After toileting, calmly invite them a short distance away and give a small reward.
3. Pick up the stool before releasing the puppy to explore again.
4. Check the garden regularly and supervise access when other dogs are toileting.
5. Use gates or appropriate litter-box placement to prevent access to cat faeces while preserving the cat's easy, private access.

Teach “leave it” and returning to you in low-distraction situations before expecting success around faeces. Reward the choice to disengage. A lead is a backup for management, not a tool for jerking the puppy away. The AVSAB humane-training guidance supports reward-based methods.

Provide suitable sniffing, chewing and social opportunities throughout the day. These meet important needs, but cleanup remains necessary even when enrichment improves the routine.

Common mistakes

Avoid shouting, chasing, rubbing the puppy's nose in accidents or punishing toileting. Such responses can create fear and make supervision harder. Do not coat faeces with chilli, chemicals or other irritating deterrents, and do not rely on pineapple or a supplement to make an accessible garden safe.

Some dogs continue the behaviour into adulthood. A promise that every puppy will outgrow it can delay effective management. Ask for professional help if the behaviour is difficult to interrupt safely or occurs with guarding.

When to seek urgent care

Contact your vet promptly for repeated vomiting, bloody diarrhoea, marked lethargy or refusal to eat after scavenging. Collapse, breathing difficulty, seizures or a painful swollen abdomen require emergency care. Suspected ingestion of drugs, poison or a foreign object should be reported immediately rather than waiting for symptoms.

Frequently asked questions

Does eating poop mean my puppy has worms?

No. Parasites are one possible concern, but the behaviour does not establish infection. Follow a veterinary testing and prevention plan.

Will a better food stop it?

Correcting an unsuitable diet matters, but changing a suitable complete food is not a proven cure for stool eating.

Are deterrent powders worth trying?

Evidence of reliable benefit is limited. Discuss ingredients and safety with your vet, and keep access prevention as the main strategy.

A calm, repeatable toileting routine protects your puppy while avoiding a daily battle.

For help understanding stool eating and planning a puppy health review, visit ASK A VET™.