The present invention refers to a vaginal device of an elastic material, the vaginal device comprising a longitudinal portion having a geometrical center line, an upper end and a lower end and which vaginal device is intended to be inserted securely fixated inside of a vagina, the upper end being the innermost of the vaginal device in the vagina during use, to support against the urethra, through the vaginal wall, to prevent urinary stress incontinence in a woman, wherein the vaginal device comprises at least one supporting portion protruding from the longitudinal portion and a reference member protruding from the longitudinal portion at the lower end, which reference member during use is fixated against the vaginal introitus, holding the vaginal device securely fixated inside of the vagina and ensuring the at least one supporting portion to support against the urethra.
