A sterile device in the form of a thin tube with an inflatable balloon at its distal tip intended to be used to provide heat ablation (typically at a temperature of approximately 150°C) of the interior lining of the uterus (endometrium) for the treatment of dysfunctional uterine bleeding (menorrhagia). It is designed to be attached to a hand-held control unit in which a fluid medium (e.g., glycerin) is heated before being forced into the catheter balloon under pressure to compress against the uterine wall and circulate within for homogenous heat distribution. This is a single-use device.