Provided is a disposable underwear-type article for wearing that can prevent bodily waste from leaking from both side edges of a crotch member and that enables a waistline member to be reliably attached to the crotch member. A diaper (1) comprises a circular waistline member (10) having a skin-facing surface and a non-skin-facing surface, and a crotch member (30) connected to the waistline member (10). The crotch member (30) comprises the following: a crotch inner-surface sheet (34) positioned on the skin-facing surface a crotch outer-surface sheet (35) positioned on the non-skin-facing surface a pair of front and back end flaps (36) and a pair of side flaps (38) that extend along both side edges (33) and both end edges (31, 32) of the inner- and outer-surface sheets (34, 35) and a pair of elastic members (50) that extend along both side edges (33) in a substantially vertical direction (Y) from the side of the end-edge (31) of both end edges (31, 32) to the side of the other end-edge (32). An intersection region (47) where both ends of the side flaps (38) in the vertical direction and both sides of the front and back end flaps (36) in the horizontal direction meet is folded back towards the skin-facing surface. In the intersection region (47), an elastic member (50) absent region (47a) is formed. The absent region (47a) is affixed to a front panel (11) of the waistline member (10).Linvention porte sur un article à porter jetable, de type sous-vêtement, qui peut empêcher des déchets humains de fuir des deux bords latéraux dun élément dentrejambe et qui permet à un élément de taille dêtre attaché de manière fiable à lélément dentrejambe. Une couche-culotte (1) comporte un élément de taille (10) circulaire ayant une surface tournée vers la peau et une surface non tournée vers la peau, et un élément dentrejambe (30) relié à lélément de taille (10). Lélément dentrejambe (30) comporte les éléments suivants : une feuille de surface interne dentrejambe (34) positionnée sur
