Dobermans need regular bathing. Depending on your dog’s activity level, he will need a bath every six to eight weeks. However, they do not need much when it comes to grooming. They are short-haired dogs, so their hair does not really get long enough to warrant a full cut. However, they do need things like their teeth being brushed and nails being clipped. You can also brush your dog down with a rubber brush or grooming mitt occasionally to help keep their skin shiny.