A Dog’s Anal Glands Expression, Anal glands, or anal sacs, contain a bad odor and occasionally need to be expressed, or emptied. Many dogs express them on their own when they excrete; however, occasionally, the sacs fill with fluid and your dog needs some help releasing the fluid. If you’re in search of Hallandale dog anal gland cleaning, we offer it within our grooming packages at Rabocao. Count on our team of dog lovers to service your pet with all his or her grooming needs, including dog anal gland cleaning!