A disposable diaper (1), comprising an absorbing body having a surface sheet and an absorbing core. A waist opening part and a pair of leg opening parts are formed in the diaper. The absorbing core (4) comprises a center absorber (41) and a pair of side absorbers (42) formed on both sides of the center absorber. The center absorber (41) is separated from the pair of side absorbers (42) in at least a crotch part (c). Elastic members for raising the side absorbers are disposed near the outer edges of the pair of side absorbers along the longitudinal direction. The side absorbers (42) are formed to be vertically raised when a wearer wears the diaper. Accordingly, when the wearer wears the diaper, a mounting pressure in the area (91) of the diaper in contact with the portion of the wearer starting at an ilium ridge to an anterior superior iliac spine is higher than a mounting pressure at the waist opening part.本發明之丟棄式尿褲(1)，其係具有含有正面薄片及吸收性核心之吸收性本體，且形成有腰部開口部及一對腿部開口部者，且吸收性核心(4)包含中央吸收體(41)及設置於其兩側方之一對側吸收體(42)，中央吸收體(41)與一對該側吸收體(42)至少於下襠部(C)處各自分離，於一對上述側吸收體各自之外側緣附近，沿長度方向配置有使側吸收體直立用之彈性構件，使各該側吸收體(42)於穿著尿褲時直立，於穿著尿褲時，使抵接於自穿著者之髂骨稜至髂骨前上棘之部位之區域(91)之裝著壓高於腰部開口部之裝著壓。
