The purpose of the present disclosure is to provide a disposable diaper having, when worn, a shape conforming to the three-dimensional body shape of a wearer. The diaper according to the present disclosure has the following structure. The disposable diaper (1) comprises a liquid permeable layer (2), a liquid impermeable layer (3), and a predetermined absorbent layer (4), is divided into a front waist region (FW), a rear waist region (RW), and a front crotch region (FC) and a rear crotch region (RC) therebetween, and is characterized in that: in the front crotch region (FC) of the absorbent layer (4), the disposable diaper (1) has a first bending guide line (6) formed between a longitudinal axis line (LA) and one side edge (5a) in the front crotch region (FC) of the absorbent layer (4) and extending in the direction of the longitudinal axis line (LA), and a second bending guide line (7) formed between the longitudinal axis line (LA) and the other side edge (5b) and extending in the direction of the longitudinal axis line (LA)； each of the first bending guide line (6) and the second bending guide line (7) includes compressed parts, grooves, or slits on at least the absorbent layer (4)； and the disposable diaper (1) has compressed parts formed by compressing the absorbent layer (4) in a center region (15) between the first bending guide line (6) and the second bending guide line (7).本發明之目的，在於提供一種於穿著狀態下，具備有沿著穿著者身體立體形狀之形狀的用後即棄式紙尿布。本發明的用後即棄式紙尿布，具備有以下的構成。本發明的用後即棄式紙尿布(1)，具備有：透液性層(2)、及不透液性層(3)、以及特定的吸收層(4)，並被劃分為：前腰圍域(FW)、及後腰圍域(RW)、以及於此等之間的前股胯域(FC)與後股胯域(RC)的用後即棄式紙尿布(1)，且用後即棄式紙尿布(1)，其特徵為：於吸收層(4)的前股胯域(FC)，具備有：配置於長邊軸線(LA)與一方的側緣(5a)之間且朝長邊軸線(LA)的方向延伸之第1折曲誘導線(6)、以及配置於長邊軸線(LA)與另一方的側緣(5b)之間且朝長邊軸線(LA)的方向延伸之第2折曲誘導線(7)，第1折曲誘導線(6)及第2折曲誘導線(7)，分別至少含有吸收層(4)的壓縮部、溝部或是細縫部，並且用後即棄式紙尿布(1)，於第1折曲誘導線(6)與第2折曲誘導線(7)之間的中央區域(15)內，具備有藉由壓縮吸收層(4)所形成之壓縮部。
