This absorbent article (1A) is provided with a front sheet (2), a back sheet (3) and a vertically long absorbent body (4). The shape of the absorbent article (1A) is inwardly constricted at the center in the longitudinal direction. The absorbent body (4) has an absorbent core (41). The absorbent core (41) has a block region (411) and a non-block region (412) around the periphery of the block region (411). The block region (411) is configured such that a plurality of block structures (400) comprising a protrusion (43) with high basis weight and a groove (44) with low basis weight are arranged regularly in the longitudinal direction and the width direction from the ventral part (A) to the dorsal part (B). The protrusions (43) and the grooves (44) are formed integrally. In the non-block region side part (412s) of the non-block region (412), the surface area of the dorsal unit (B) or the ventral part (A) is greater than the surface area of the crotch part (C), seen in planar view.吸收性物品(1A)包括正面片材(2)、背面片材(3)及縱長之吸收體(4)。吸收性物品(1A)具有縱方向之中央部向內方收細之形狀。吸收體(4)具有吸收性芯體(41)。吸收性芯體(41)具有塊狀區域(411)及包圍塊狀區域(411)之外周之非塊狀區域(412)。塊狀區域(411)係由包含基重較高之凸部(43)及基重較低之槽部(44)的塊狀構造(400)自腹側部(A)跨及背側部(B)且規則地於縱方向及橫方向上配置複數個而構成。凸部(43)及槽部(44)成形為一體。於俯視時,非塊狀區域(412)中之非塊狀區域側部(412s)的背側部(B)或腹側部(A)之面積大於胯襠部(C)之面積。1A‧‧‧尿布2‧‧‧正面片材3‧‧‧背面片材4‧‧‧吸收體6‧‧‧立體褶皺7‧‧‧黏扣帶8‧‧‧著扣帶43‧‧‧凸部62‧‧‧立體褶皺形成用片材411‧‧‧塊狀區域412‧‧‧非塊狀區域
