Revolution is a topical parasiticide used in the treatment and
prevention of heartworm disease, fleas, the American dog tick, ear
mites and canine sarcoptic mange. When used in cats it also treats
certain hookworm and roundworm disease. But not all worms.

worms are probably not the problem, but its an easy check - drop a
sample by the vets so they can check. If nothing found then have the a
sacks checked. I doubt that the vet will see anything but better safe
than sorry.

my cats ( some of them) do this when they have hair balls. Cat Five
who is short hared does it the most often. I do use a hair ball
treatment but sometimes he gets poo stuck to his hiney and he does the
butt scoot. I have had him checked and he has no worms, a sacks are
ok.

I notice he does this mostly in times like now when they are blowing
coat.

soft