Absorbent sheet

An absorbent sheet having a longitudinal direction, a lateral direction, and

• a thickness direction that are orthogonal to each other, the absorbent sheet comprising:
• an absorbent core having liquid-absorbent fiber and superabsorbent polymer;
• a top-face sheet disposed on a top-face side in the thickness direction with respect to the absorbent core,
• the top-face sheet being liquid permeable;
• and
• a back-face sheet disposed on a back-face side in the thickness direction with respect to the absorbent core,
• the absorbent sheet being divided into four portions in the longitudinal direction and into four portions in the lateral direction,
• the divided portions in the absorbent sheet being defined as divided regions, in the absorbent sheet subjected to a drop test,
• the drop test being performed by dropping artificial urine at a predetermined position on the absorbent sheet,
• the divided regions where the artificial urine diffuses being defined as diffusion divided regions,
• the absorbent sheet before the drop test having a pre-absorption thickness that is a thickness of a portion of each of the diffusion divided regions where the absorbent core is present,
• the absorbent sheet after the drop test having a post-absorption thickness that is a thickness of a portion of each of the diffusion divided regions where the absorbent core is present,
• a CV value that indicates variation in a value obtained by subtracting the pre-absorption thickness from the post-absorption thickness in each of the diffusion divided regions, being 30% or less,
• a maximum value obtained by subtracting the pre-absorption thickness from the post-absorption thickness in each of the diffusion divided regions, being 1 mm or more.