PROBLEM TO BE SOLVED: To provide a pants-type diaper capable of improving fit while ensuring absorption performance. A pants-type diaper includes an abdominal part 2, a dorsal part 3, and an absorbent main body 10 that is located between the abdominal part and the dorsal part and that includes an absorbent body 14. .. The absorbent body includes a back area BA, an abdominal area FA, and a crotch area MA that include a superabsorbent polymer and are arranged along the longitudinal direction. The dorsal region overlaps the dorsal portion in the thickness direction. The ventral region overlaps the ventral portion in the thickness direction. The crotch region is located between the dorsal region and the ventral region. At least one of the back side region and the ventral side region includes a low basis weight region in which the basis weight of the superabsorbent polymer is lower than that in the crotch region. [Selection diagram] Figure 1【課題】吸収性能を確保しながら、フィット性を改善することが可能なパンツ型おむつを提供する。【解決手段】パンツ型おむつは、腹側部２と、背側部３と、前記腹側部と前記背側部との間に位置し、吸収体１４を含む吸収性本体１０と、を備える。吸収体は、高吸水性ポリマーを含み、長手方向に沿って並んだ、背側領域ＢＡと、腹側領域ＦＡと、股間領域ＭＡと、を備える。背側領域は、背側部と厚さ方向に重なる。腹側領域は、腹側部と厚さ方向に重なる。股間領域は、背側領域と腹側領域との間に位置する。背側領域及び腹側領域の少なくとも一方は、股間領域よりも記高吸水性ポリマーの坪量が低い低坪量域を含む。【選択図】図１
