Some breeds, such as Labrador Retrievers and Golden Retrievers, have double coats that trap dirt and moisture.
Dogs with short, smooth coats can usually go longer between baths than dogs with long, wiry coats.
Dogs that spend a lot of time outdoors, such as hunting dogs or working dogs, may need to be bathed more often than dogs that spend most of their time indoors.
If your dog has a skin condition, such as allergies or seborrhea, you may need to bathe them more often to help keep their skin clean and healthy.
Ultimately, the decision of how often to wash your dog is up to you and your dog's individual needs.
If your dog is starting to smell, or if their coat is looking greasy or matted, it's time for a bath. You can also check for signs of dirt and debris.
When you do bathe your dog, it's important to use a mild shampoo and to rinse them thoroughly. You should also avoid getting shampoo in their eyes or ears.