Most people know that their dog's sense of smell is much better than a human's, but so is your dog's sense of hearing. Dogs can distinguish between footsteps and vehicle sounds, hear thunderstorms hours before they arrive, or pick up on a baby mouse in a far part of the house. So it is important that your dog's ears stay in tip-top shape. That includes grooming, cleaning and removing excess hair.
Hair inside your dog's ear should be trimmed to prevent the buildup of wax, debris, and moisture that can contribute to ear infections. The edges of your dog's ears are often trimmed to keep your dog looking neat and clean and prevent tangles and knots. But, because ears are delicate structures you will need to be careful when working with scissors or trimmers around your dog's ears.