The present invention is an absorbent article that is provided with a liquid-absorbing absorbent body (11) and has a longitudinal direction, a width direction, and a thickness direction that are orthogonal to each other, said absorbent body (11) having: a first groove section (121) that is formed along the longitudinal direction, and induces the absorbent body (11) to bend in the thickness direction; and a plurality of second groove sections (122) that are lined up in the longitudinal direction, and formed so as to pass through the center in the width direction of the first groove section (121) and intersect a straight line along the longitudinal direction. With the absorbent body (11) in a flat state, the second groove section (122) disposed rearmost in the longitudinal direction among the plurality of second groove sections (122) is separated from the rear end section of the first groove section (121) in the longitudinal direction.