A good ‘rule of thumb’ on how often to bathe your dog is that less is more beneficial. Once a month is average and should be sufficient for keeping your dog clean. If she gets very dirty during a specific activity then she can bathed if needed. Some dog breeds can go much longer between baths then other breeds. My dog gets a bath every three months or so. Your veterinarian or dog groomer can advise you on the proper frequency for your specific dog.