Provided is an absorbent pad that makes a wearer feel less uncomfortable when in use and easily recovers the original shape thereof when the wearer opens his/her legs. The absorbent pad (10) is attached to the inside of a diaper and comprises: a surface sheet (20) a back sheet (22) and an absorbent body (30) disposed between the surface sheet (20) and the back sheet (22) and comprising an absorbent core (32) made of an absorbent material. The absorbent body (30) has a peripheral region (P) and a central region (C) surrounded by the peripheral region (P). The peripheral region (P) is thinner and stiffer than the central region (C). The absorbent body (30) has: a pair of low-basis-weight regions (42) extending along the longitudinal direction (L) at boundaries between the central region (C) and the peripheral region (P) adjacent to the central region (C) in the widthwise direction (W) and a groove (40) located in the central region (C) and extending in the longitudinal direction (L) at the center in the widthwise direction (W) on the non-skin-contact surface of the absorbent body (30).Linvention concerne un tampon absorbant qui permet de réduire linconfort de lutilisateur et qui reprend facilement sa forme dorigine lorsque lutilisateur ouvre les jambes. Le tampon absorbant (10) est fixé à lintérieur dune couche-culotte et comprend : une feuille superficielle (20) une feuille arrière (22) et un corps absorbant (30) disposé entre la feuille superficielle (20) et la feuille arrière (22) et comprenant un noyau absorbant (32) constitué dun matériau absorbant. Le corps absorbant (30) comporte une zone périphérique (P) et une zone centrale (C) entourée par la zone périphérique (P). La zone périphérique (P) est plus mince et plus rigide que la zone centrale (C). Le corps absorbant (30) comprend : une paire de zones à faible grammage (42) sétendant en direction longitudinale (L) aux limites entre la zone centrale (C) et la zone périphérique (P) adjacente à la zone centrale (