I'm glad he's going to the doctor, Haudlady.
My DH had blood in his stool on and off for a couple years before he finally went to the doctor. He assumed it was hemmorhoids, but getting a guy to get something looked at is like trying to pull teeth. After a colonoscopy, it was found that he had a fissure. He had surgery a month ago and all is well.
I hope your DH's condition is nothing serious. Please keep us posted and know you are in our thoughts!!