An absorbent article comprising: a liquid permeable topsheet having compressed grooves (10 to 15) in a surface, wherein the compressed grooves (10 to 15) include a first compressed groove having a compressed groove base point on a center line (CL) extending in a length wise direction of the absorbent article and include a second compressed groove arranged on a rear side of the first compressed groove ; a backsheet ; and an absorbent body interposed between the liquid permeable topsheet and the backsheet , wherein the compressed groove base point , where the first compressed groove formed bilaterally and symmetrically on both sides of the center line (CL) in the lengthwise direction of the absorbent article or lines extended from center lines of the first compressed groove intersect with each other, is formed at a position corresponding to a front end of a intergluteal cleft of a wearer, and a right and left pair of outline inflection points is formed in an outline of a rear end of the absorbent article, the outline of the rear end being formed into a bilateral and symmetric wavelike shape, and wherein easy deformation parts that facilitate generation of a deformation in a transverse direction of the absorbent article and are formed of the first compressed groove or the second compressed groove that become base edges of the deformation, are provided on or in the vicinity of two virtual lines (S) connecting the compressed groove base point to the outline inflection points on right and left sides, respectively, such that a distance between the two virtual lines (S) gradually increases toward a rear side. a liquid permeable topsheet having compressed grooves (10 to 15) in a surface, wherein the compressed grooves (10 to 15) include a first compressed groove having a compressed groove base point on a center line (CL) extending in a length wise direction of the absorbent article and include a second compressed groove arranged on a rear side of the first compressed groove ; a backsheet ; and an absorbent body interposed between the liquid permeable topsheet and the backsheet , wherein the compressed groove base point , where the first compressed groove formed bilaterally and symmetrically on both sides of the center line (CL) in the lengthwise direction of the absorbent article or lines extended from center lines of the first compressed groove intersect with each other, is formed at a position corresponding to a front end of a intergluteal cleft of a wearer, and a right and left pair of outline inflection points is formed in an outline of a rear end of the absorbent article, the outline of the rear end being formed into a bilateral and symmetric wavelike shape, and wherein easy deformation parts that facilitate generation of a deformation in a transverse direction of the absorbent article and are formed of the first compressed groove or the second compressed groove that become base edges of the deformation, are provided on or in the vicinity of two virtual lines (S) connecting the compressed groove base point to the outline inflection points on right and left sides, respectively, such that a distance between the two virtual lines (S) gradually increases toward a rear side. <EOS>