An absorbent article that has fitting properties making it possible to avoid the absorbent article shifting on the pet and that does not interfere with the pet walking is provided. This absorbent article (10) has a vertical direction (Y) and a horizontal direction (X), and includes a ventral region (13), a dorsal region (14), an intermediate region (15) which extends in the vertical direction (Y) between the ventral region (13) and the dorsal region (14), and an absorbent core (60) which extends from the intermediate region (15) to the ventral region (13). The ventral region (13) and the dorsal region (14) of the absorbent article (10) comprises both lateral edges (16c, 16d, 17c, 17d) that extend in the vertical direction (Y) and an inner edge (16a, 17a) and an outer edge (16b, 17b) that extend in the horizontal direction, and comprise an outer edge region (34) that includes the outer edge (16b, 17b), an inner edge region (33) that includes the inner edge (16a, 17a), and a central region (35) positioned between the inner edge region (33) and the outer edge region (34), and are further provided with a connecting means (79) which detachably latches both lateral edges (16c, 16d) of the ventral region (13) and both lateral edges (17c, 17d) of the dorsal region (14), wherein an opening is positioned in the central region (15) to allow insertion of the tail (6) of the pet (5), the absorbent core (60) is positioned towards the ventral region (13) from the opening, and the inner edge region (33) of the ventral region (13) has an elastic region (36) which is stretchable in the horizontal direction (X).Linvention fournit un article absorbant qui tout en présentant des propriétés dajustement permettant dempêcher un décalage de sa position par rapport à un animal de compagnie, ne constitue pas une gêne pour la marche de lanimal de compagnie. Larticle absorbant (10) de linvention présente une direction longitudinale (Y) et une direction latérale (X), et contient une région côté
