According to hair coat dogs are divided into short hair breed medium hair breed and long hair breed. short hair breeds like Chihuahua, Beagle, dachshund, pug, Great Dane, boxer, French Bulldog Labrador, dalmatian, Rottweiler, Basit hound, Bulldog Mastiff needs bath once in a week. Medium haired breeds like siberian Husky German Shepherd border collie saluki Cocker Spaniel Tibetan Mastiff Golden Retriever require bath once in 15 days. Where as in long hair breeds like Afghan hound bearded colli requires bath once in a month.Dog skin is delicate since less number of glands are there hence increase in the frequency of bathing then recommended would leave the dogs skin dry. Always use dog soap or shampoo for bathing your dogs. No human shampoo should be used.