ok on a thread here i found this answer...Blood in the stoll usually means worms. Diarrhea and blood is usually whipworm. You might want to get a wormer that takes care of whip. (Safeguard is a good wormer).i think magnum has worms, hes really really skinny and eats like a horse, but has diarrhea that looks a little bloody...well the first time he pooped today was diarrhea, all the other times were just water. he seems dehydrated too. what can i do about dehydration and how will i find out if he is? he drank 4 bowls of water today.and i'm wondering...how can i take a fecal to the vet monday when there is hardly anything coming out of his butt..???