This disposable wearing article is configured such that a rear waist region (14) includes: a band-like region (23) located on the skin-facing surface side and extending in the transverse direction (X) and a downwardly openable pocket (30) located on the non-skin-facing surface side and facing the band-like region (23) in the front-rear direction at the center in the transverse direction (X). The pocket (30) has: a pocket outer region (43) extending upward from the crotch region (15) side and a pocket inner region (42) which faces both the pocket outer region (43) and the band-like region (23) in the front-rear direction, is continuous with the pocket outer region (43) through a bend section (33) extending in the transverse direction (X), extends downward from the bend section (33), and connects to the band-like region (23). The rear waist region (14) has first affixation regions (81A) for affixing the band-like region (23) and the pocket inner region (42) to each other. The first affixation regions (81A) each have: an inner portion (81b) located inside either a side edge (85c) of an absorption body (85) in the transverse direction (X) or an imaginary line (L3) drawn by extending upward the side edge (85c) of the absorption body (85) and an outer portion (81c) located outside either the side edge (85c) or the imaginary line (L3).Linvention concerne un article de protection jetable, qui est conçu de telle sorte quune région de taille arrière (14) comprend : une région de type bande (23) située sur le côté de surface côté peau et sétendant dans la direction transversale (X) et une poche pouvant souvrir vers le bas (30) située sur le côté de surface non-côté peau et faisant face à la région de type bande (23) dans la direction avant-arrière au centre dans la direction transversale (X). La poche (30) comprend : une région externe de poche (43) sétendant vers le haut depuis le côté région dentrejambe (15) et une région interne de poche (42) qui fait face à la fois à la
