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.本發明之課題係一種,藉由在體液吸收體形成高剛性域,可抑制穿用時在胯下域產生縱皺紋的情況之用後即棄式穿著用物品。〔解決手段〕體液吸收體(24)具有:吸收性芯(26);被覆吸收性芯(26)的上面的上部薄片(27);被覆吸收性芯(26)的下面的下部薄片(28)。在位於體液吸收體(24)之中的至少胯下域(13)的中央部的區域,形成有配置複數個壓縮凹部(31)的高剛性域(61)。壓縮凹部(31)是具有橫向(X)中的寬幅尺寸(W1)比縱向(Y)中的長度尺寸(W2)更大的形狀,高剛性域(61)具有:往沒有配置壓縮凹部(31)的縱向(Y)延伸的複數個縱低剛性帶域(64);壓縮凹部(31)朝橫向(X)排列被形成的複數個橫高剛性帶域(62);以及在縱向(Y)由位在比鄰的高剛性域(61)間之沒有形成壓縮凹部(31)的區域構成的橫低剛性帶域(63)。64‧‧‧縱低剛性帶域31‧‧‧壓縮凹部F2‧‧‧箭頭印F3‧‧‧箭頭印W4‧‧‧寬幅尺寸F1‧‧‧力W5‧‧‧分開尺寸W2‧‧‧長度尺寸W1‧‧‧寬幅尺寸W3‧‧‧寬幅尺寸61‧‧‧高剛性域63‧‧‧橫低剛性帶域62‧‧‧橫高剛性帶域X‧‧‧橫向Y‧‧‧縱向
