Cat poo colour explained

Black cat poo

This can be a sign of bleeding in the upper gut especially if it has a ‘coffee grounds’ appearance – the black colour is digested blood. Dark cat poo may be normal in cats that eat a diet with a high blood content or hunt and eat their prey. If your cat develops dark tarry stools or you notice it looking like coffee grounds then it would be best to get in contact with a vet as soon as possible.

Red cat poo/blood in cat poo

Fresh blood can make your cat’s poo red. If it appears in streaks and/or with slimy or jelly-like mucus
it’s usually from low down in the gut or even an injury to your cat’s anus. Don’t worry too much if there is just a small amount of blood and it’s just a one-off event. If all the poo is red coloured though
it may indicate an infection (especially if the poo is also looser than normal).

Yellow or orange cat poo

Can occur quite innocently now and then but if not normal for your cat and becomes consistent
this may be a sign of liver problems.

Green cat poo

May be due to your cat eating a lot of vegetables or plants but can also be a sign of gallbladder issues.

White cat poo

It’s not very common that your cat’s poo will look white but if it does then it could indicate a blockage in the bile duct. The cat would also show other signs of being unwell such as vomiting
lethargy and inappetance and this would be a reason to get in contact with a vet straight away. White spots or strings in normal-coloured poo may be a sign of intestinal worms.

Healthy cat poo guide.