A sanitary napkin (1) comprises an absorbing body (2). The absorbing body (2) includes a fluid-permeable top sheet (3), a fluid-impermeable back sheet (4), and an absorber (5) arranged between the top sheet (3) and the back sheet (4). The napkin comprises a cover sheet (8) for covering the surface of the top sheet (3). A circumferential edge region (8P) of the cover sheet (8) is joined to the absorbing body (2). A flap for fixing the absorbing body (2) to underwear is sectionalized by a sectionalizing line (9) in the central region (8C) of the cover sheet. At the time of use, the flap is folded in a folding region and is expanded so as to be fixed to the underwear. A mark (20) is provided on the surface of the cover sheet (8) positioned substantially at the center of the absorbing body (2) to facilitate the positioning of the absorbing body (2) relative to clothing. The mark (20) is colored, but a surrounding portion (8S) surrounding the mark (20) is not colored.
