Disclosed is a penile constriction device comprising a body including an aperture (4) for surrounding a penis wherein the aperture (4) defines an inner edge (6,7). According to the present invention an elastic strap (8) is arranged within the aperture (4) or at least in alignment with the aperture (4) wherein the ends of the strap (8) are connected to connection points (10) at the inner edge (6,7) of the aperture (4) or at portions of the body (2) adjacent to the aperture (4), and where in the connection points (10) are positioned opposite to each other relative to the aperture (4) and the length of the strap (8) between its both ends is greater than the distance between the connection points (10) so that the strap (8) is able to be optionally brought into a first position (FIG. 4a) so as to limit the aperture (4) for defining a first aperture cross-section area (4.1) or a second (FIG. 4d) position opposite to the first position relative to the aperture (4) so as to limit the aperture (4) for defining a second aperture cross-section (4.2) area which is larger than the first aperture cross-section area (4.1).
