There are many types of bloodshot eyes. From the color point of view, they are divided into red, brown and black.

Pathologically, intestinal bleeding, gastric bleeding, traumatic bleeding, etc.

Red means it is not caused in the intestines, hemorrhoids or the like, or a little bleeding in the anus, it is red.

Ketchup, typical minor symptoms.

Brown, there are more internal parasites.

Black, it may be gastric bleeding, bleeding caused by canine distemper enteritis.

When you pull it out, it looks like jelly, which is mucous membrane. As for the diseases that can cause bleeding, there are too many, so I won’t give examples one by one.

In short, no matter what kind of blood the dog has, it should be checked immediately.