An absorbent article has a length direction, a width direction and a thickness direction, and is provided at least with an absorbent body including water-absorbent fibers. The absorbent body includes deformation-guiding portions which extend in a predetermined direction, and base portions provided on both sides of each deformation-guiding portion. The deformation-guiding portions are provided with compressed regions which extend in said predetermined direction and in which the absorbent body has been compacted in the thickness direction, and protruding portions which extend in the predetermined direction on both sides of each compressed region and which protrude from the base portion toward the skin surface. The configuration is such that the fiber density of the protruding portions is less than the fiber density of the base portion.