Abstract: An absorbent sanitary article with posterior guide ridge member is provided for effectively absorbing and retaining bodily fluid in the septum region of a wearer. The absorbent sanitary article with posterior guide ridge member has a bodycontacting surface for providing comfort against body skin and throughwhich bodily fluids will pass. An absorbency core provides some measure of bodily fluid absorbency. A barrier layer is included in order to prevent bodily fluids retained by the absorbency core from penetrating through the present invention and soiling adjacent undergarments. An outer layer imparts a degree of comfort and softness, as well as providing a vapor permeable sheathe. An integrally formed guide ridge is provided in order to be guidably received within a septum region of the wearer to prevent soilage of undergarments and to provide the wearer with a greater sense of dryness.