An object of the invention is to improve the diffusibility of body fluid such that the body fluid can be quickly absorbed. The sanitary napkin 1 represented by FIG. 3 includes an absorbing body 4 with a highly water-absorbent polymer 12 interposed between an upper layer sheet 10 disposed on the skin side and a lower layer sheet 11 disposed on the non-skin side. The upper layer sheet 10 has a plurality of first protrusions 14 forming first space parts 13 that are to be filled with the highly water-absorbent polymer and that expand to the skin side, and a plurality of second protrusions 16 forming second space parts 15, each of which having a smaller volume than each of the first space part 13, that are to be filled with the highly water-absorbent polymer and that expand to the skin side. The weight per unit area of the highly water-absorbent polymer 12 filled into the second space parts 15 is made smaller than the weight per unit area of the highly water-absorbent polymer 12 filled into the first space parts 13.
