PROBLEM TO BE SOLVED: To provide a disposable diaper for pet which satisfactorily fits the waist of a pet.SOLUTION: The disposable diaper for pet has a waist ara 110, a crotch area 120, a waist opening 130, a pair of leg openings 140, an absorbent core 160, a tail insertion opening 150 and a stretchable elastic waist member 172 arranged in the waist area 110 in a stretched state, and has an adjustment part 220 which is arranged in an outer area 100Z1 and shortens the circumferential length of the waist area 110 by shortening the distance between a first waist area 111 and a second waist area 112 which are two areas in the waist area 110.COPYRIGHT: (C)2015,JPO&INPIT【課題】ペットの胴周りに対し良好にフィットするペット用使い捨ておむつを提供する。【解決手段】胴周り領域110と、股下領域120と、胴周り開口130と、一対の脚周り開口140と、吸収性コア160と、尻尾挿通開口150と、胴周り領域110に伸長状態にて配置された胴周り用伸縮性弾性部材172とを有し、外側領域100Z1に配置されるとともに、胴周り領域110における二つの領域である第1胴周り領域111と第2胴周り領域112との間の距離を縮めることにより、胴周り領域110の周囲長さを縮める調整部220を有する。【選択図】 図2
