System and method for endometrial ablation. The system includes that handle and elongated guide sleeve extend to the expansible working end with fluid-tight interior chamber. Thin dielectric wall surrounds at least part of the inner cavity chamber, and has the outer surface for contacting endometrial tissue. Thin dielectric wall surrounds foldable expansible frame, and receives a part that non-conductive the first polar electric pole of gasoline is exposed to the internal chamber. Radio frequency power source is operably connected to electrode arrangement, apply between first electrode and second electrode, wherein the voltage is sufficiently great to initiate ionization neutral gas to conductive plasma in the inner cavity, and the electric current of capacitance coupling plasma passes through the endometrial tissue that thin dielectric wall is engaged with the outer surface of ablation dielectric structure.
