The present invention addresses the problem of providing a novel absorbent article that prevents excessive compression of an absorbent body caused by deformation of the absorbent article, and rewetting associated with said compression. In order to solve such a problem, a sanitary napkin (1) is provided with a liquid-permeable top sheet (2), a liquid-impermeable back sheet (3), and an absorbent body (4) disposed between the top sheet (2) and the back sheet (3), wherein: an extensible area (21) having an extensible bellows-like section (210), and a flexible area (22) surrounding the extensible area (21) are formed in a waste supply area (20) of the top sheet (2).本發明係以提供防止因吸收性物品的變形造成的吸收體的過度壓縮及伴隨其之回滲的新穎吸收性物品為課題，為了解決該課題，在具備液體透過性的頂部薄片(2)、液體不透過性的背部薄片(3)、頂部薄片(2)及背部薄片(3)間所設置的吸收體(4)的生理用衛生棉(1)中，在頂部薄片(2)中排泄物被供給領域(20)形成具有可伸展的蛇腹部(210)的伸展性領域(21)與包圍伸展性領域(21)的可撓性領域(22)。
