If your dog suddenly has diarrhoea, it's a stressful situation for everyone involved: for you, because you worry, and for your four-legged friend, who is visibly unwell. This guide explains what can cause diarrhoea in dogs, when a diarrhoea medication is really necessary, and what immediate measures you can take.
Why does my dog get diarrhoea?
The causes of diarrhoea in dogs are varied. It's often a harmless, temporary reaction of the digestive tract, but sometimes something more serious is behind it. To find the right help, it's worth knowing the most common triggers.
- Change of food: Switching to a new food too abruptly can overwhelm digestion. A gradual transition over seven to ten days is therefore advisable.
- Spoiled food or foreign objects: Dogs like to eat things on walks that don't agree with them, such as old animal droppings, food scraps or unknown plants.
- Food intolerances: Some dogs react sensitively to certain ingredients such as grain, dairy products or individual protein sources.
- Infections and parasites: Viruses, bacteria or parasites such as giardia or worms can cause gastrointestinal problems. A veterinary diagnosis is absolutely essential here.
- Stress and excitement: Travel, house moves, new animals in the household or other changes can have a noticeable effect on digestion.
- Diseases of internal organs: Problems with the liver, pancreas or intestines can show up, among other things, as recurring or chronic diarrhoea.
Because the list of possible causes is so long, the rule of thumb is: for mild, one-off cases without other symptoms, you can initially wait and take first measures. If the diarrhoea recurs or other complaints are added, there's no way around a visit to the vet practice.
Diarrhoea like water: when does it become dangerous?
Not every case of diarrhoea needs to be taken equally seriously. An important warning sign is diarrhoea like water, meaning completely liquid stools with no firmness at all. This can indicate a more serious condition or lead to dangerous fluid loss, especially in puppies, older dogs and small breeds. Go to the vet immediately if:
- the diarrhoea is watery and lasts longer than 24 hours
- blood is visible in the stool, whether red or black in colour
- your dog is vomiting at the same time or has stopped drinking
- they seem apathetic, weak or visibly dehydrated
- a puppy or a very old dog is affected
- the belly is bloated or the dog shows signs of pain
In puppies, severe fluid loss from diarrhoea can become life-threatening within a few hours. Here the rule applies: better to go to the vet too early than too late.
What helps against diarrhoea in dogs?
For mild, one-off diarrhoea in dogs without accompanying symptoms, there are some tried-and-tested measures that help many dogs. However, these don't replace a veterinary diagnosis if there's doubt about the cause.
- Bland diet: Boiled rice with lean, cooked chicken or turkey is considered a classic recommendation for sensitive stomachs. This light, low-fat food gives the digestive tract a soothing break.
- Enough water: Make sure your dog drinks enough to make up for fluid loss. Fresh water should be accessible at all times.
- A short break from food: Some vets recommend a food break of a few hours to relieve the stomach. However, this is not suitable for puppies and weakened dogs: discuss this with your vet practice beforehand.
- Probiotics: Certain probiotic preparations can help support the gut flora. Your vet can best advise you on which ones are suitable for dogs.
- Rest and minimal stress: Give your dog the chance to recover and keep excitement as low as possible.
It's important to implement all measures consistently and patiently. Many dogs recover from uncomplicated diarrhoea within one to two days if they get a bland diet and drink enough.
Diarrhoea tablets: what does the vet prescribe?
If home remedies don't help or a more serious cause is present, diarrhoea tablets and other medications come into play. Which preparation makes sense always depends on the exact cause. A veterinary diagnosis is therefore a prerequisite before you give your dog anything. Possible treatment options include:
- Electrolyte solutions: In the case of severe fluid loss, these are often the most important immediate measure to prevent dehydration.
- Probiotic veterinary medicines: To support and restore the gut flora, for example after an infectious illness or antibiotic treatment.
- Anti-diarrhoeal medication: There are special preparations for dogs that can regulate bowel activity or improve stool consistency. These are used based on veterinary assessment.
- Antibiotics: These are only prescribed if a bacterial infection has been confirmed or is reasonably suspected. Self-medication is not appropriate here and can make the situation worse.
- Deworming treatment: If parasites are the cause, the vet will recommend a suitable product, often after a stool examination.
Important: Never give your dog medication made for humans without first consulting a vet. Some human medicines are unsuitable or even poisonous for dogs, including certain painkillers and anti-diarrhoeal remedies from the medicine cabinet.
Bland diet and nutrition after diarrhoea
After a bout of diarrhoea, the right diet is crucial to support recovery and prevent a relapse. During the recovery phase, opt for easily digestible, natural food without unnecessary additives, and give your dog time to return to their usual rhythm.
- Feed small portions, spread over several meals a day, rather than one large amount at once.
- Choose low-fat, easily digestible protein sources such as chicken or turkey before gradually switching back to normal food.
- Temporarily avoid treats and chews with long ingredient lists or artificial additives.
- Dogs with sensitive digestion often benefit from grain-free food, as grain can promote intolerances in some animals.
Once your dog is fit again and you want to rely on high-quality, natural products in the long term, kauliebe offers a selection of chews, treats and grain-free food from the NANDOO brand, made with natural ingredients and without artificial additives.
Frequently asked questions
How long does diarrhoea normally last in dogs?
Mild diarrhoea triggered by a change of food or short-term stress usually clears up in most dogs within one to two days. If the diarrhoea lasts longer, gets worse, or other symptoms are added, you should see a vet promptly.
Can I give my dog a diarrhoea medication from the pharmacy?
You shouldn't give your dog medication from human medicine without veterinary instruction. Some substances that are harmless for humans can be dangerous for dogs. Always ask your vet practice which preparations are suitable for your dog before giving anything.
What can my dog eat when they have diarrhoea?
A light bland diet such as boiled rice with lean, cooked poultry has proven effective. It's important that portions are small and your dog gets enough fresh water. You should temporarily avoid treats, chews and fatty food until digestion has stabilised again.
Is diarrhoea like water in dogs an emergency?
Very watery diarrhoea that appears suddenly and is accompanied by vomiting, blood in the stool or apathy should be urgently assessed by a vet. Especially in puppies and older dogs, severe fluid loss can quickly become dangerous. If in doubt, it's better to go to the vet too early than too late.
