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.提供一種不費事就能知道吸液性芯的縱向中的尿的擴散的寵物用吸收性物品。寵物用吸收性物品(10),係長方形狀的雄性寵物用吸收性物品,且其是具有:長方向(縱向)(Y)及寬邊方向(橫向)(X)、與和寵物身體對置的身體對置面及位在其相反側的非身體對置面,並包含:位在長方向(Y)中央的第1區域(13);在長方向(Y)鄰接第1區域(13)的第2區域(14);位在前述身體對置面側的內層薄片(20);位在前述非身體對置面側的外層薄片(30);以及位在前述內外層薄片(20、30)之間的吸液性芯(15)。具有:在長方向(Y)互相對置的第1端域(11A)及第2端域(12A)、位在第1端域(11A)可卡脫地卡止第2端域(12A)的卡止部(25)、以及接觸尿就顯示顯色的指示部(21),指示部(21)朝縱向(Y)連續延伸,並可從前述非身體對置面側視認。5‧‧‧寵物7‧‧‧背部10‧‧‧寵物用吸收性物品(吸收性物品)14a‧‧‧背部對置域11A‧‧‧第1端域14b‧‧‧背部對置域12A‧‧‧第2端域10c‧‧‧兩側緣L6‧‧‧上下方向的尺寸24a‧‧‧指示部中,吸收性物品的長方向尺寸的30%以上45%以下的部分24c‧‧‧指示部中,越過將寵物軀體的上下方向的尺寸對分的對分線往上方延伸的部分2a‧‧‧對分線10d‧‧‧兩側緣15‧‧‧吸液性芯21‧‧‧指示部3‧‧‧性器13‧‧‧腹部對置域(第1區域)6‧‧‧腹部4c‧‧‧後腳4a‧‧‧前腳4d‧‧‧後腳4b‧‧‧前腳