PROBLEM TO BE SOLVED: To inhibit an absorbent article from being worn, with the back thereof mistaken for the front.SOLUTION: The absorbent article includes: an absorbent body for absorbing an excretory substance; a ventral belt member, the laterally central part of which is fixed to longitudinal one end of the absorbent body, while covering the one end from a non-skin side of the absorbent body; and a dorsal belt member, the laterally central part of which is fixed to the longitudinal other end of the absorbent body, while covering the other end from a non-skin side of the absorbent body. The ventral belt member includes a ventral elastic member stretching in the lateral direction, and the dorsal member includes a dorsal elastic member stretching in the lateral direction. The ventral belt member and the dorsal belt member include: joining parts where one part of laterally both side edges in the ventral bel member and one part of laterally both side edges in the dorsal belt member are joined; and non-joining part that are located longitudinally crotch side with respect to the joining parts and where both side edges of the ventral belt member and both side edges of the dorsal belt member are not joined. The ventral elastic member and the dorsal elastic member are longitudinally deflected at least in the longitudinal crotch side with respect to the joining parts.【課題】吸収性物品が前後誤って着用されてしまうことを抑制すること。【解決手段】排泄物を吸収する吸収性本体と、吸収性本体の縦方向の一端部を吸収性本体の非肌側から覆いながら前記一端部に横方向の中央部が固定された腹側帯部材と、吸収性本体の縦方向の他端部を吸収性本体の非肌側から覆いながら前記他端部に横方向の中央部が固定された背側帯部材とを有し、腹側帯部材には横方向に伸縮する腹側弾性部材が配置され、背側帯部材には横方向に伸縮する背側弾性部材が配置され、腹側帯部材及び前記背側帯部材は、腹側帯部材における横方向の両側縁の一部と背側帯部材における横方向の両側縁の一部とが接合される接合部と、接合部よりも縦方向の股下部側に位置し、腹側帯部材における両側縁と背側帯部材における両側縁とが接合されない非接合部とを有し、少なくとも接合部よりも縦方向の股下部側では、腹側弾性部材と背側弾性部材とが縦方向にずれて配置されている吸収性物品。【選択図】図5