Provided is an absorbent article in which the spreading of urine in the longitudinal direction of the liquid-absorbing core can be recognized with minimal effort. This absorbent article (10) has a length direction (longitudinal direction) (Y) and a width direction (lateral direction) (X), and a body-facing surface that faces a pets body and a non-body-facing surface located on the opposite side therefrom, the absorbent article comprising: a first zone (13) located in the center in the length direction (Y) a second zone (14) adjacent to the first zone (13) in the length direction (Y) an inner layer sheet (20) located on the body-facing surface side an outer layer sheet (30) located on the non-body-facing surface side and a liquid-absorbing core (15) located between the inner and outer layer sheets (20, 30). The absorbent article is rectangular and is for male pets. The absorbent article includes: a first end region (11A) and a second end region (12A) that oppose one another in the length direction (Y) a fastening part (25) that is located in the first end region (11A) and that detachably fastens the second end region (12A) and an indicator (21) that colors when coming into contact with urine. The indicator (21) extends continuously in the longitudinal direction (Y), and is visible from the non-body-facing surface side.Linvention fournit un article absorbant tel que la diffusion de lurine dans la direction longitudinale dun noyau dabsorption de liquide, est perçue sans effort. Larticle absorbant (10) possède une direction longueur (direction longitudinale) (Y) ainsi quune direction largeur (direction latérale) (X), et une face en vis-à-vis avec le corps se trouvant en vis-à-vis avec le corps de lanimal de compagnie et une face non en vis-à-vis avec le corps positionnée côté opposé. En outre, larticle absorbant (10) contient : une première zone (13) positionnée au centre de la direction longueur (Y) une seconde zone (14) adjacente à la première zone (13) dans la direc
