My Dog Has Diarrhoea: Home Care and Red Flags

Diarrhoea is common, usually settles by itself, and just occasionally is the first sign of something that will kill an animal within two days. The useful skill is working out which of those two conversations you are having.

Most of the time it is the first one, and this page will help you handle it at home.

The usual causes

• Dietary indiscretion, which is the polite term for eating something it should not have
• A sudden change of food, made over a day rather than a week
• Stress, from travel, boarding, a house move or a new animal
• Worms, especially in puppies and dogs on an irregular deworming schedule
• Infections, bacterial, viral or protozoal
• Medication, particularly antibiotics

What the appearance tells you

• Large volume, watery, few times a day: usually small intestine. Weight loss and vomiting are more likely.
• Small volume, frequent, straining, mucus or fresh blood: usually large intestine. Distressing to watch and generally less dangerous.
• Black, tarry stool: digested blood from higher up the gut. This is serious and needs a vet.
• Fresh red blood with a strong smell in an unvaccinated puppy: treat as parvovirus and go now.

Home care for an otherwise well adult dog

Appropriate only if the dog is bright, drinking, has pink gums and none of the red flags below.

1. Do not fast a dog for long. Older advice suggested 24 hours; current thinking favours feeding small bland meals early, because the gut lining heals better when fed. Never fast a puppy at all.
2. Feed small, bland, frequent meals: boiled chicken with plain white rice, small portions four or five times a day.
3. Keep water available constantly. Dehydration is the main risk.
4. Return to normal food over three days once stools firm up.

If there is no improvement in 48 hours, stop managing it at home.

Red flags: see a vet

• Any diarrhoea in a puppy, particularly with vomiting or lethargy
• Blood, fresh or black and tarry
• Repeated vomiting alongside it
• Lethargy, weakness or collapse
• Pale or tacky gums, or skin that stays tented when lifted
• A painful or distended abdomen
• Longer than 48 hours, or recurring every few weeks
• Known access to something toxic, or a swallowed object
• An elderly dog, or one with an existing condition

Why puppies are different

A puppy has almost no fluid reserve. What an adult dog shrugs off over two days can dehydrate a puppy dangerously in under twelve hours. Add the fact that parvovirus presents exactly this way, and the sensible threshold for a puppy is far lower: any diarrhoea plus any vomiting or lethargy means today, not tomorrow.

What not to do

• Do not give human anti-diarrhoea medication. Several are unsafe in dogs, and slowing the gut is actively harmful when the body is clearing an infection or a toxin.
• Do not withhold water.
• Do not give leftover antibiotics from a previous illness. Most diarrhoea does not need them, and using them badly makes future infections harder to treat.
• Do not keep changing foods every two days. It prolongs the problem and destroys any chance of identifying a trigger.

What helps the vet

Bring a fresh stool sample if you can, ideally from the last few hours. It allows a check for worms and protozoa immediately, which is often the whole answer. Note when it started, how often, the appearance, whether there is vomiting, whether the dog is eating and drinking, its deworming and vaccination dates, and anything it might have eaten.

Preventing repeats

• Deworm on a proper schedule rather than when you remember
• Keep vaccinations current, especially in puppies
• Change foods gradually, over a week
• Secure bins and keep bones and scraps out of reach
• Investigate recurring diarrhoea rather than treating each episode as separate. A pattern over months is a diagnosis waiting to be made

The trap with diarrhoea is that it usually does resolve on its own, which quietly trains owners to wait. That habit works until the case that is not ordinary, and puppies are where waiting costs most, because they have the least margin and the most dangerous differential.

Consultations, diagnostics and treatment are covered on Skeepy Pet HMO plans at any vet clinic in Nigeria, so a puppy with diarrhoea gets seen on the day rather than watched overnight to save a consultation fee.