My cat has blood in his feces and he's losing hair. He's at least 7 years old. For the past few days he's had darkish blood in his feces. He's also losing hair on his rump on both sides of his tail. He's a bigger cat, but I wouldn't call his obese. He's very active, and isn't acting sick at all.
A trip to the vet will occur tomorrow or the day after, but I'd like to know if anyone else had issues like this.