Provided is an absorbent article suitable for bedridden pet animals. An absorbent article (10) for pet animals has a longitudinal direction (Y) and a width direction (X) crossing each other and includes: a body-facing surface and a non-body-facing surface opposite to each other a first edge and a second edge (10a, 10b) opposite to each other in the longitudinal direction (Y) a tail facing area (13) facing a tail of the pet (5) a first section (11) extending from the tail facing area (13) toward the first edge (10a) and covering one of buttocks of the pet (5) a second section (12) extending from the tail facing area (13) toward the second edge (12b) and covering another one of the buttocks of the pet (5) an absorbent core (15) positioned between the first section (11) and the second section (12) and an attachment (21) positioned on the first section (11) and capable of attaching to an attachment target part (22) on the second section (12).
