An object of the present invention is to reduce the thickness when folded in a longitudinal direction and to prevent leakage from a side portion. An incontinence pad (1) in which an absorber (4) is interposed between a topsheet (3) and a leak-proof sheet (2), and is folded in the longitudinal direction at a folding line (L) extending in the width direction. A plurality of first ridges 10 and second ridges 11 alternately arranged in the width direction along the longitudinal direction are formed on the skin side surface of the absorber 4, and the first ridges 10 are Extending from the dorsal side in the longitudinal direction of the absorber 4 to the middle position on the ventral side in the longitudinal direction across the folding line L, and the second ridge 11 extends in the longitudinal direction of the absorbent body 4. A side of the absorbent body 4 extends from the area that does not overlap the first ridge 10 in the width direction or from the ventral side in the longitudinal direction to the middle position on the longitudinal back side across the fold line L. [Selection diagram] FIG.【課題】長手方向に折り畳んだ際の厚みを低減するとともに、側部からの漏れを防止する。【解決手段】表面シート3と防漏シート2との間に吸収体4が介在されるとともに、幅方向に延びる折り線Lにて長手方向に折り畳まれる失禁パッド1である。吸収体4の肌側面には、長手方向に沿うとともに幅方向に交互に配置された第1の凸条10と第2の凸条11とがそれぞれ複数形成され、前記第1の凸条10は、前記吸収体4の長手方向の背側から前記折り線Lを跨いで長手方向の腹側の中間位置まで延びており、前記第2の凸条11は、前記吸収体4の長手方向の腹側における前記第1の凸条10と幅方向に重ならない範囲又は前記吸収体4の長手方向の腹側から前記折り線Lを跨いで長手方向の背側の中間位置まで延びている。【選択図】図4