Reviewed by Dr Katie DavisonBVMS MRCVS - RCVS Recognised Advanced Veterinarian
Diarrhoea is one of the most common reasons dogs come to see us. Most short bouts settle on their own, but some point to a problem that needs treatment - and dehydration can creep up quickly, especially in small or young dogs.
Here's how to tell the difference, what you can do at home, and when it's time to pick up the phone.
What causes diarrhoea in dogs
- A dietary slip - scraps, a food change, or scavenging
- Intestinal worms and other parasites
- Stress or excitement (a kennel stay, travel, a new home)
- Bacterial or viral infections
- Something swallowed that shouldn't have been
- Ongoing conditions like food sensitivities or inflammatory bowel disease
See us promptly if…
- There's blood in the stool, or it's black and tarry
- Diarrhoea comes with repeated vomiting
- Your dog is flat, weak, or won't drink
- It lasts more than about 48 hours, or keeps coming back
- It's a puppy, a senior, or a dog with another health condition
Safe home care for a mild upset
If your dog is bright and none of the warning signs apply, make sure they always have access to fresh water - keeping them hydrated is the priority. Many mild cases settle with a couple of days of small, bland, easily-digested meals before returning to their normal food.
Avoid human anti-diarrhoea medicines unless we've advised them - some aren't safe for dogs. If things don't improve within a day or two, or you're worried at any point, call us on 07 870 2696.