are you sure there is no any breaker 跳到off? some of the breaker may not flip all the way over to the "OFF" position,double check it,
If still not working, check all the GFI outlet in every bath room, GFI is type of outlet have two button , "test" and "reset" if you don't see the Light on the GFI outlet, press the reset button.

A GFI, or ground fault circuit interrupter, is an automatic device that offers personal protection against electrical shock. They are installed in areas where known electrical shock hazards exist... outdoor outlets and fixtures, swimming pools, saunas and hot tubs, outlets in kitchens, basements, bathrooms, and garages. Wherever there is the potential for contact between a person and an electrical appliance in or near moisture, water, or water pipes, a GFI should be protecting the circuit... and you!