The measuring device according to the present invention includes a cylindrical probe (2) including a cylindrical longitudinal body (4) equipped with a flange (5) forming a stop, a pressure sensor (8) placed according to a direction longitudinal to the surface of the cylindrical body (4), an electronic card (15) disposed inside the cylindrical body (4) to which the pressure sensor (8) is connected, and communication means (16, 17) longitudinally traversing the probe (2) and allowing the inner part of the vagina to be connected to the outer in order to balance the intravaginal and extravaginal pressures.