I used to bathe every two weeks but i have found with a daily brushing and spray cologne in between baths, that they can get by with once a month, unless they get in the rain and the dirt and grass sticks to them. I guess it depends on how dirty your yorkie gets. All of mine stay inside. I wash butts when needed I wash my boys wee wee every day and dry my girls and boys with tissue after each pee pee. Rince feet off with waterhose when needed. You wouldn't believe what a difference this makes. This only takes a second and keeps them smelling much better. I have 5 yorkies so this is what works for me.
