An absorbent article having water disintegratability that includes a water disintegratable top sheet, a water disintegratable back sheet, a pressure-sensitive adhesive section for attaching the absorbent article to clothing, disposed on the surface of the back sheet opposite the top sheet, and a release sheet for protection of a contact surface of the pressure-sensitive adhesive section which contacts with clothing. One or more protrusions and one or more depressions are formed on the contact surface of the pressure-sensitive adhesive section.