How often should you bathe your pooch?
Here are some general guidelines:
Bathing once a month works for most dogs.
Dogs with oily coats, like Basset Hounds, may need bathing as frequently as once a week.
Many short-haired breeds with smooth coats, such as Beagles and Weimaraners, do just fine with less frequent baths. Short-coated Basenjis are fastidious in their personal hygiene and rarely need a bath. Breeds with water-repellent coats, such as Golden Retrievers and Great Pyrenees, should be bathed less often so as to preserve their natural oils.
Dogs with thick, double coats, such as Samoyeds, Malamutes, and other Northern breeds, do best with fewer baths and a lot of extra brushing, which gets rid of loose, dead hair and helps distribute natural oils that keep your dog’s skin and coat healthy.
Italicized extract and photo: https://dogtime.com/dog-health/general/129-bathing