PROBLEM TO BE SOLVED: To inform a wear assistant that a limit of absorption capacity is approaching.SOLUTION: In a disposable diaper 1 according to the present invention, an area in which an absorber 10 is disposed in the vicinity of a boundary line B between a crotch area 120 and a front girth area 110 or a rear girth area 130 is formed as a visible area 41A in which the absorber 10 is visible from a non-skin-contact surface side of the disposable diaper 1, and an invisible area 40 in which the absorber 10 is invisible from the non-skin-contact surface side of the disposable diaper 1 is formed so as to cross the center line O in the product longitudinal direction L.
