Black Labrador stood at back door of house, looking to camera

Blood in dog poo

A small amount of blood in your dog’s poo is usually not a cause for concern. If your dog is still acting their usual self and hasn’t been sick, then it’s best to keep an eye on them and speak with your vet if the blood is repeated, there is a large volume, or your pet seems unwell. 

Do I need to visit the vet?

  • Black poo: this indicates digested blood – speak to your vet
  • Loose runny poo with jelly like blood: this may be colitis (inflammation of the lower part of the bowel) -  it should resolve in a couple of days, but some cases need treatment, so contact your vet if your dog is unwell or the symptoms persist or are severe.
  • Bright red spots: this can be caused by straining – usually not anything to worry about, but speak to your vet if it persists

Why is there blood in my dog’s poo?

There are many reasons your dog’s poo may have blood in it. These can range from worms to gastroenteritis and can also be caused by food allergies or eating something they shouldn’t have.

But it’s important to note that, if your dog is well, this is usually nothing to worry about.

If, however, your dog is unwell and is continuously straining or passing blood, then you will need to speak to your vet and get your dog checked out.

— Page last updated 25/01/2022