PROBLEM TO BE SOLVEDTo prevent side leakage of body fluids by maintaining an erection state on a skin side even when a large amount of body fluids is absorbed by an absorbent body.SOLUTIONIn the gather-forming nonwoven fabric 7 in which a three-dimensional gather erect on a skin side is formed, a middle part in the width direction is joined with a side edge portion of the liquid permeable surface sheet 7, and a folded portion 7c folded back to a side at an inner side of the joint portion C is formed. The folded portion 7c is defined by an end area Z1, a urinary-opening facing area Z2, and a middle area Z3. In the end area Z1 and the middle area Z3, a portion on an inner side in the width direction of the folded portion 7c is joined with the liquid permeable surface sheet 3, and a projection 17 with an end of a portion on an outer side in the width direction rather than the joint portion D as a free end portion is formed. In the urinary-opening facing area Z2 and the middle area Z3, an elastic stretching member 15 is arranged continuously at least in a region corresponding to the projection 17, along the pad longitudinal direction.
