The present invention relates to a kind of disposable incontinence diapers (2), have:Main part (4), dorsal area (16) of the main part with front area (12), with rear side longitudinal edge (18)And it is attached to the rear side section (22) of the dorsal area (16) in both sides,It is not attached any lateral sectors (22) in the front area (14) on the contrary,But the lateral longitudinal edge in front (14) of the main part (4) constitutes the longitudinal edge with free terminal of the diaper,Wherein these rear side sections (22) can be arranged respectively along the body for being wrapped circumferentially around user and overlappingly with the lateral surface of the front area (12),Then these rear side sections can releasably be attached to the lateral surface respectively by corresponding closure means (28),So that the disposable incontinence diaper (2) to be placed at user and be closed,Wherein these rear side sections (22) flattening but it is non-stretched in the state of have in the lateral extension size Q on (10),It can flexibly be stretched within wherein this extension size Q of these rear side sections (22) in the transverse direction (10) and there is the elasticity extended in the transverse direction (10) and on the longitudinal direction (8) or elastification region (42) thus,Extension size Q wherein in the transverse direction (10) includes the proximal section (38) for being connected to the rear side longitudinal edge (18) and the distal section (40) with free terminal,And wherein from the rear side longitudinal edge, (18)s extended the following length to the proximal section (38) in transverse direction (10),The length is the 65% of the extension size Q of rear side section (22),It is characterized in that,The corresponding elasticity of these rear side sections (22) or elastification region (42) is arranged within the proximal section (38) and reaches associated rear side longitudinal edge (18) or has at a distance from most 30mm with the rea
