Absorbent article

An absorbent article having a longitudinal direction, a lateral direction intersecting the longitudinal direction, and a front-back direction intersecting the longitudinal direction and the lateral direction, the absorbent article comprising:

• a front waist portion extending along the lateral direction and including first and second end portions on first and second sides respectively in the lateral direction;
• a back waist portion extending along the lateral direction and including first and second end portions on the first and second sides respectively in the lateral direction;
• a crotch portion provided between the front waist portion and the back waist portion;
• and
• a fastening member joined to the back waist portion,
• wherein
• each of the front waist portion and the back waist portion includes an elastic region extending along the lateral direction,
• the first end portion of the back waist portion is directly and undetachably joined to the first end portion of the front waist portion to define a first joining portion,
• the second end portion of the back waist portion is joined to the fastening member to define a second joining portion, and is not joined to the second end portion of the front waist portion,
• the fastening member has a fastening portion configured to be fastened to the front waist portion when the absorbent article is worn,
• the fastening member includes a first edge portion and a second edge portion opposite to the first edge portion in the lateral direction and directly joined to the second end portion of the back waist portion,
• an edge of the second end portion of the back waist portion on the second side is located between the first and second edge portions of the fastening member in the lateral direction,
• while the front waist portion and the back waist portion are being stretched in the lateral direction,
• a lateral distance of the front waist portion from a lateral center of the crotch portion to an edge of the second end portion of the front waist portion on the second side in the lateral direction is smaller than a lateral distance of the back waist portion from the lateral center of the crotch portion to the edge of the second end portion of the back waist portion on the second side in the lateral direction, and
• the lateral distance of the back waist portion from the lateral center of the crotch portion to the edge of the second end portion of the back waist portion on the second side in the lateral direction excludes an entirety of a lateral distance of the fastening member extending outwardly from the edge of the second end portion of the back waist portion on the second side in the lateral direction to an outermost edge of the first edge portion of the fastening member.