The present invention provides an absorbent article capable of causing less discomfort to a wearer and being less likely to give rise to skin conditions such as bedsores or rashes. This absorbent article comprises a surface sheet (5) and an absorber (6) and has a longitudinal direction, a width direction, and a thickness direction. The absorbent article further comprises: a low friction member (14) disposed on a skin-facing side of the surface sheet (5) at least in a rear region (4), and having a plurality of openings (16) that penetrate the absorbent article in the thickness direction; and a cover sheet (13) disposed on the skin-facing side of the low friction member (14). Furthermore, each of the plurality of openings (16) are specifically configured so as to have an opening periphery portion (17) disposed on the skin-facing side and a rib portion (18) protruding toward the non-skin-facing side from the opening periphery portion (17).