A bodily fluid absorbent structure that includes an absorbent core, an upper sheet covering an upper surface of an absorbent core and a lower sheet covering a lower surface of the absorbent core. Of the bodily fluid absorbent structure, at least an area extending in a central portion of a crotch region is formed with a high stiffness region including a plurality of debosses. The debosses are respectively shaped so that a length dimension thereof in a transverse direction is longer than a length dimension thereof in a longitudinal direction. The high stiffness region includes a plurality of longitudinal low stiffness zones extending in the longitudinal direction and formed with none of the debosses, a plurality of transverse high stiffness zones formed with the debosses arranged intermittently in the transverse direction and transverse low stiffness zones each lying between each pair of the transverse high stiffness zones being adjacent in the longitudinal direction and formed with none of the debosses.
