A sanitary napkin comprises an absorbent interposed between a liquid-permeable surface sheet and a liquid-impermeable back sheet and enlarged to have a larger absorbent width on the back end than that of a crotch portion, and stereo gathers on the two sides of the surface. The stereo gathers have one or more folded-back portions formed at positions on the back end of the vicinity of a body liquid discharging portion, and the sanitary napkin is made to have a larger width between the stereo gathers on the back end thereof than that at the body liquid discharging portion.