The present invention concerns a dilator (801) comprising a body having at least a proximal section (2) provided with a proximal end area (4) by which can be introduced a tampon (13), and a distal section (3) intended to be introduced into the vaginal wall of a user, said distal section being shaped so that: it can switch from an initial resting state, in which it delimits a longitudinal internal passage, the cross-section of which is smaller than the cross-section of the tampon, to a deployed state, in which the cross-section of the internal passage adapts to the cross-section of the tampon, so as to allow for the longitudinal movement of said tampon, it is long enough to allow for release of the tampon directly into the vaginal cavity, without said tampon being able to make any prolonged contact during intromission thereof with the area of the muscular narrowing of the vaginal wall.
