The object of the present invention is to provide a disposable wearing article, which allows the buttocks not to be exposed when being worn and is capable of preventing leakage of body fluids by fitting an edge of a leg opening to the body of the wearer. The solution of the present invention is that a crotch sheet body (13) has an elastically extendable leg elastic body (50) and comprises a pair of leg elasticized sheets (43) extending in a vertical direction (Y). An effective extension size of the leg elasticized sheet (43) under maximum extension is greater than a separation size (L2) of the vertical direction (Y) measured from an inner edge (18a) of a front waist region (18) to an inner edge (19a) of a rear waist region (10).本發明之課題是提供一種,穿用中臀部不會露出,且藉由使腿開口緣部貼合在穿用者的身體,可防止體液的洩漏的情況的用後即棄式穿著用物品。解決手段,胯下薄片體(13)具有可彈性地伸長的腿彈性體(50),且包含:朝縱向(Y)延伸的一對的腿彈性化薄片(43)。腿彈性化薄片(43)的最大伸長時的有效伸長尺寸,是比從前腰域(18)的內端緣(18a)到後腰域(19)的內端緣(19a)的縱向(Y)的分開尺寸(L2)更大。10‧‧‧用後即棄式穿著用物品15‧‧‧後腰域16‧‧‧胯下域14‧‧‧前腰域32‧‧‧第2彈性體27‧‧‧外層薄19b‧‧‧內端緣39‧‧‧內端部27a‧‧‧折彎部19‧‧‧後腰域38‧‧‧外端部40‧‧‧中間部39‧‧‧內端部19c‧‧‧兩側緣47‧‧‧後端部55‧‧‧後端部20‧‧‧接合部19d‧‧‧兩側緣25‧‧‧內層薄片19a‧‧‧內端緣34‧‧‧第4彈性體30‧‧‧固定薄片50‧‧‧腿彈性體52‧‧‧補強薄片51‧‧‧覆蓋薄片48‧‧‧中間部13c‧‧‧外側緣43‧‧‧腿彈性化薄片16‧‧‧胯下域52‧‧‧補強薄片58‧‧‧吸收性芯13‧‧‧彈性胯下薄片體56‧‧‧中間部18a‧‧‧內端緣12‧‧‧彈性腰薄片體54‧‧‧前端部24‧‧‧內層薄片31‧‧‧第2彈性體26‧‧‧外層薄18b‧‧‧外端緣28‧‧‧圖形顯示薄片18‧‧‧前腰域
