Bleeding Nipples

I am very worried about my boy Salem, his two bottom nipples were bleeding, he got blood all over the house and his bottom nipples look red now, does anyone know what this is?
Also, Salem is a MALE cat
Thankss.

I'd get a vet appointment right away. It could be due to a tumor, and quick treatment is the best course of action. Your vet is the only one who will be able to help you determine what the cause of the bleeding is, but my first thought is some sort of mammary tumor.