To provide a pant-type absorbent article that prevents leakage of excrement from the leg opening. [Solution] The pant-type absorbent article 1 comprises an abdominal portion 3, a dorsal portion 6, and an absorbent body 4. The abdominal portion has an abdominal
waist end 101 and an abdominal
crotch end 107. The dorsal portion has a dorsal
waist end 102 and a dorsal
crotch end 108. The dorsal portion has a dorsal extension 60 and a dorsal body portion that extend from a position corresponding to the abdominal
waist end to the dorsal waist end. The abdominal portion has an abdominal extension 32 and an abdominal body portion that extend from a position corresponding to the dorsal
crotch end to the abdominal crotch end. The pant-type absorbent article comprises a pair of side seals 8 to which the lateral side edge of the abdominal body portion and the lateral side edge of the dorsal body portion are joined. The dorsal extension, dorsal body portion, abdominal extension, and abdominal body portion each have one or more laterally stretchable elastic bodies 70 that extend laterally and are arranged to do so.