Article by: If your pet is constantly licking its rear end or dragging their hindquarters along the floor, it could be time for their anal sacs to be expressed. Most anal sac problems don’t require emergency attention and can often be treated quickly by your veterinarian. Some veterinarians may even show you how to express your pet’s anal glands at home, which I recommend doing regularly so as to prevent future anal sac impaction or infection. Rectal prolapse can either be incomplete (grade 1) in which only rectal mucosa protrudes beyond the anus, or complete (grade 2) where all layers of the rectum protruded. Rectal prolapse is most frequently seen among young calves experiencing severe diarrhea, tenesmus and Eimeria infection; it may also be caused by hernias, spinal trauma from excessive riding or feeding high-concentrate diets.