In some embodiments the method includes inserting an access tool through a cervix and a cervical canal into the uterus; placing an expansion mechanism in contact with tissue within the uterus to move uterine tissue surfaces away from an opening in an access tool lumen; delivering vapor through the vapor delivery tool into the uterus; and condensing the vapor on tissue within the uterus. The system has an access tool adapted to be inserted through a cervical canal to place an opening of an access tool lumen within a uterus; an expansion mechanism adapted to be advanced into the uterus to move uterine tissue surfaces away from the opening in the access tool lumen; and a vapor delivery mechanism adapted to deliver condensable vapor through the access tool to the uterus, the condensable vapor being adapted to condense within the uterus.