A system for treating pelvic organ prolapse includes a shell and an anchor. The shell is made of biodegradable material that is insertable into a vagina. The shell has a convex exterior apex that is sized to contact an interior apical portion of the vagina. The anchor has a proximal portion that is attachable to the apex of the shell and a distal portion that is provided with a tissue fixation device that is attachable to tissue exterior the vagina such that the anchor and the shell combine to support and elevate the interior apical portion of a vagina.