A method and system of providing therapy to a patients uterus. The method can include the steps of inserting a uterine ablation device into the uterus expanding a distal anchor inflating a proximal balloon to pull the distal anchor proximally and seat the distal anchor against the internal os of the uterus inflating a central balloon to seal the cervix delivering vapor from the uterine ablation device into the uterus and condensing the vapor on tissue within the uterus. The can include a cervical collar adapted to place a distal portion of the device within the uterus when the cervical collar contacts an external os of the cervix.