Brushing your pet on a regular basis prevents matting and tangling, and in the worst cases, sores and infections. Also, brushing allows their coat to ventilate and distribute the natural oils stored in your pet’s fur, making it more shiny, healthy and beautiful. Too much grease buildup can block pores and cause irritation and other skin problems. Even though some dogs may not require frequent brushing, their coats will be glossier if you help stir up and distribute those oils on a more frequent basis.