An absorbent article (100) comprises a liquid-permeable top sheet (10), a liquid-impermeable back sheet (40), and an absorber (30) mounted between the top sheet (10) and the back sheet (40). A coating region (400) to which an adhesive (60) is applied is formed in a flat surface direction, on a surface (42) of the back sheet (40) which faces clothing. An endothermic material (50) is provided inside the absorber (30). A region (410) which, with respect to the thickness direction of the absorbent article (100), does not face an arrangement region (225) in which the heat endothermic material (50) is provided is formed in at least a part of the coating region (400) to which the adhesive (60) is applied.
