The subject matter discloses an apparatus for gradually dilating the cervix, comprising an elongated body having sidewalls, at least a portion of said elongated body is located in the cervix and an enlargement mechanism located within the elongated body being in communication with the sidewalls, for generating a movement of the sidewalls away from the central axis of the elongated body, The apparatus further comprises a generation unit located outside the elongated body, for maneuvering the enlargement mechanism such that the movement of the sidewalls is generated.