An absorbent article (1) having: an excretion orifice contact area (S1) facing the excretion orifice of a wearer； a rear area (S3) positioned to the rear of the excretion orifice contact area (S1)； an absorbent body (30) arranged in at least the excretion orifice contact area (S1) and the rear area (S3)； a skin-surface sheet (10) provided further on the skin surface side than the absorbent body (30)； and a non-skin-surface sheet (20) provided further on the non-skin-surface side than the absorbent body (30). The absorbent body (30) has: a first low basis weight area (41) between the excretion orifice contact area (S1) and the rear area (S3), extending from one end to the other end in the width direction (W)； and a second low basis weight area (42) in the rear area (S3) extending in the front/rear direction (L) along a center line (CL) connecting the centers of the width direction (W). The skin surface sheet (10) has an un-joined area (46), in the first low basis weight area (41), that is not joined to a member provided further on the non-skin-surface side than the skin-surface sheet (10).吸收性物品(1)，是具有：與裝用者的排泄口對置的排泄口抵接域(S1)；位在排泄口抵接域(S1)的後側的後側域(S3)；至少被配置在排泄口抵接域(S1)與後側域(S3)的吸收體(30)；較吸收體(30)更被設在肌膚面側的肌膚面薄片(10)；以及較吸收體(30)更被設在非肌膚面側的非肌膚面薄片(20)。吸收體(30)具有：在排泄口抵接域(S1)與後側域(S3)之間從寬邊方向(W)的一端延伸到另一端的第1低基重區域(41)、以及在後側域(S3)沿著連結寬邊方向(W)中心的中心線(CL)朝前後方向(L)延伸第2低基重區域(42)。肌膚面薄片(10)在第1低基重區域(41)具有沒有與較肌膚面薄片(10)更被設在非肌膚面側的構件接合的非接合區域(46)。
