The present invention aims to provide an absorbent article adapted to define between a separator sheet and a liquid-absorbent structure a void space serving to retain feces and, in addition, to maintain an initial volume of this void space. An absorbent article includes a separator sheet (3) having opposite lateral zones extending in a longitudinal direction (Y), a middle zone (39) via which the opposite lateral zones are contiguous to each other, a front through-hole (40) formed on the side of a front waist region (7), a rear through-hole (41) formed on the side of rear waist region (8) wherein the front and rear through-holes (40, 41) are bordered by the middle zone (39), and a separator sheet biasing elastic members attached under tension to the respective lateral zones. A void space is formed between the separator sheet (3) and a liquid-absorbent structure (23) as the liquid-absorbent structure (23) bows about a crotch region (9) toward front and rear waist regions (7, 8). A chassis (2) includes a front leg elastic member (34) laid on the side of the front waist region (7) and a rear leg elastic member (35) laid on the side of the rear waist region (8) wherein at least the rear leg elastic member (35) includes a rear transverse segment (35b) extending across the crotch region (9) and a position of the rear transverse segment (35b) corresponds to a position of the middle zone (39) of the separator sheet (3).本發明之課題係為提供一種在隔離薄片與吸液構造體之間,形成保持糞便的空隙,並可維持該空隙的吸收性物品。本發明用以解決課題之手段為:隔離薄片(3)係包含:朝縱方向(Y)延伸的兩側部份、連接兩側部份之間的中間部部(39)、隔著中間部部(39),位在前腰圍區域(7)側的前方連通部(40)、位在後腰圍區域(8)側的後方連通部(41)、以伸長狀態被裝設在兩側部份的隔離薄片彈性構件。吸液構造體(23)係藉著從褲襠區域(9)朝向前後腰圍區域(7,8)彎曲,在隔離薄片(3)與吸液構造體(23)之間形成空隙。主體(2)係包含:位在前腰圍區域(7)側的前腿部彈性構件(34)、以及位在後腰圍區域(8)側的後腿部彈性構件(35),至少後腿部彈性構件(35)包含了橫斷褲襠區域(9)的後橫斷部(35b),並且後橫斷部(35b)係具有對應於隔離薄片(3)之中間部部(39)的位置關係。1...紙尿褲2...主體3...隔離薄片4...防漏屏障薄片7...前腰圍區域8...後腰圍區域9...褲襠區域11...內面薄片14...腰圍側緣部15...腰圍側緣部17...腿部側緣部20...彈性構件21...腿部彈性構件23...吸液性片狀物26...襯墊30...分隔薄片34...前腿部彈性構件35...後腿部彈性構件35a...後第1周延部35b..
