An absorbent article (1) having an absorbent main body (10) and a pair of flaps (20) extending from the absorbent main body (10) to both outer sides in the width direction, the absorbent article (1). At least a part of the region between the first and second fold lines from the front side in the longitudinal direction of the plurality of fold lines for folding) is attached to the crotch of the underwear, and the flap portion (20) is A restraining portion (23) which does not have an adhesive to be bonded to the non-skin side surface and has a restraining portion (23) which restrains the deformation of the front portion and the rear portion in the longitudinal direction from being transmitted to each other. Must be located in the area between the first and second fold lines.吸収性本体部(10)と、吸収性本体部(10)から幅方向の両外側に延出した一対のフラップ部(20)とを有する吸収性物品(1)であり、吸収性物品(1)を折り畳むための複数の折り線のうち長手方向の前側から1番目と2番目の折り線の間の領域の少なくとも一部は、下着のクロッチに装着され、フラップ部(20)は、下着の非肌側面に接着される接着剤を有さず、かつ、長手方向における前方部及び後方部の変形が相互に伝達されることを抑止する抑止部(23)を有し、抑止部(23)は、1番目と2番目の折り線の間の領域に配置されていること。