A thin disposable insert for adherence onto the crotch portion of a female undergarment for reducing pressure otherwise transferred from the undergarment to the external genital organs of the female is referred to as a panty guard. An anatomically correctly shaped pelvic organ support included within or adhered to the panty guard provides three dimensional support to the pelvic floor of a female. The pelvic organ support and the thin disposable insert provide a barrier between the female pelvic organs and abrasive fabrics of the undergarment. The pelvic organ support provides a porous space between tight-fitting non-breathable undergarments and the genitalia of the wearer, allowing air to flow across the wearers skin. The panty guard with a pelvic organ support to prevent infection, lacerations, pelvic floor prolapse, and incontinence.