To provide an absorbent article which does not give a sense of discomfort as it follows the body of a wearer when he/she takes exercise or does sport.SOLUTION: First and second side edge parts 17, 18 of an absorbent article 10 respectively include narrowed parts 30 extending inward in a lateral direction X. The narrowed part 30 located in the first side edge part 17 and the narrowed part 30 located in the second side edge part 18 are positioned to face each other in the lateral direction. An absorber 20 has a pair of deformation guide parts 40 extending inward in the lateral direction X from absorber both side edges 20c, 20d. The deformation guide part 40 of the absorber 20 is located on a virtual line K1 to K3 linearly extending from an inner end 34 of the narrowed part 30 to a longitudinal central line P.SELECTED DRAWING: Figure 3【課題】着用者が運動やスポーツを行う場合であっても、着用者の身体に追従して違和感を与えるおそれのない吸収性物品の提供。【解決手段】吸収性物品１０の第１及び第２側縁部１７，１８は、それぞれ、横方向Ｘの内側へ延びる括れ部３０を有する。第１側縁部１７に位置する括れ部３０と第２側縁部１８に位置する括れ部３０とは、横方向において対向して位置し、 吸収体２０は吸収体両側縁２０ｃ，２０ｄから横方向Ｘの内側へ延びる一対の変形誘導部４０を有する。括れ部３０の内端３４から縦断中心線Ｐへ向かって直線状に延びる仮想線Ｋ１－Ｋ３上に吸収体２０の変形誘導部４０が位置する。【選択図】図３
