An apparatus for thermal therapy treatment of male genitalia includes a contoured cup for receiving the male genitalia in a close, confronting, confining relationship therein, and an adjustable body harness connected to the cup for holding and maintaining the cup in a treatment position in which pressure is exerted against the genitalia. The cup has a contoured inner shell for receiving the genitalia, a contoured outer shell permanently and irremovably sealed to the inner shell, and a thermal medium permanently sealed in an internal chamber between the shells.
