I had to bring Dodi, my male beagle, to the vet because he was continually licking and biting his rear end. He was also leaving foul-smelling secretions wherever he had to put his backside down. Pooping was ok though. The vet had to express his anal glands and gave him an antibiotic shot. The vet said I may have to bring Dodi back for another anal sac "expression" when I observe him dragging his rear end again.