Along the width direction, this diaper (10) has two stretching regions (C1, C2, D1, D2) comprising elastic members (34, 35) fixed and arranged in a stretched state, and a non-stretching region (C3, D3) located between the two stretching regions. An absorbent core (22) is configured from a block region and a non-block region (216) positioned outside of the block region in the longitudinal direction or the width direction. The block region comprises a high basis weight part (214a) and a low basis weight part (214b). The non-block region (216) has a constant thickness and basis weight. The block region is arranged in the non-stretching region (C3, D3). A fixed end of the elastic members (34, 35) is positioned in the non-block region (216).本發明之尿片(10)沿寬度方向具有:彈性構件(34、35)以拉伸狀態固定配置而成之2個伸縮區域(C1、C2、D1、D2),及位於2個該伸縮區域之間之非伸縮區域(C3、D3)。吸收性芯體(22)包含塊狀區域、及位於該塊狀區域之長度方向外側或寬度方向外側之非塊狀區域(216)。塊狀區域包含高基重部(214a)及低基重部(214b)。非塊狀區域(216)之厚度及基重為固定。於非伸縮區域(C3、D3)配置有塊狀區域。彈性構件(34、35)之固定端部位於非塊狀區域(216)。10‧‧‧尿片20‧‧‧吸收性本體21‧‧‧正面片材22‧‧‧吸收性芯體30‧‧‧外裝體33‧‧‧腰部彈性構件34‧‧‧彈性構件35‧‧‧彈性構件40A‧‧‧腹側腰箍40B‧‧‧背側腰箍216a‧‧‧非塊狀區域217A‧‧‧腹側部高基重部群217B‧‧‧背側部高基重部群217C‧‧‧下襠部高基重部群227A‧‧‧腹側部高基重部群227C‧‧‧下襠部高基重部群A‧‧‧腹側部B‧‧‧背側部C‧‧‧下襠部C1‧‧‧伸縮區域C2‧‧‧伸縮區域C3‧‧‧非伸縮區域D1‧‧‧伸縮區域D2‧‧‧伸縮區域D3‧‧‧非伸縮區域L‧‧‧腿部開口緣W‧‧‧腰部開口緣X‧‧‧寬度方向Y‧‧‧長度方向
