Wet stool with a little bit of blood??

Hi everyone,

I'm freaking out, and I'm about to jump in the car and take my little guy to the vet.. but then I decided maybe I should first see if my issue was common or not. 

I was cleaning the litter box, and of course as I was doing so my 5 month old kitten decided he had to go. So I let him do his thing, and then when I went to go scoop it, I noticed that he had a little bit of blood in his stool. I know sometimes constipation can cause a little bit of blood, but these stools were wet. I just had his stools tested a few weeks ago for parasites and his results were negative. 

Should I take him to the vet right away??

Thanks!

If you are unsure, the best thing is to take him.