PROBLEM TO BE SOLVED: To provide an absorbent article in which excrement is unlikely to leak from a low basis weight portion of an absorber. An absorbent article includes an absorbent core (4) and a surface sheet (2) disposed on the skin-facing surface side of the absorbent core (4) and having an uneven structure on the skin-facing surface. The absorbent core 4 has one or a plurality of low basis weight portions 41 extending in one direction and having a relatively lower basis weight than other portions of the absorbent core 4. In a plan view, the topsheet 2 has a plurality of types of convex portions 24 having different sizes in a region overlapping the low basis weight portion 41. [Selection diagram] Figure 1【課題】吸収体の低坪量部から排泄物が漏れにくい吸収性物品を提供すること。【解決手段】吸収性物品は、吸収性コア4と、吸収性コア4の肌対向面側に配され且つ肌対向面に凹凸構造を有する表面シート2とを備える。吸収性コア4は、一方向に延び且つ該吸収性コア4の他の部位よりも相対的に坪量の低い一又は複数の低坪量部41を有する。平面視において、表面シート2は、低坪量部41と重なる領域に、大きさの異なる複数種の凸部24を有している。【選択図】図1