The invention relates to a pair of disposable sanitary short pants, comprising front parts (2), back parts (3) and a crotch part (4) provided with two leg openings (5, 6). Longitudinal edge parts (21, 22) of the front parts are connected to longitudinal edge parts (31, 32) of the front parts (3) through longitudinal sewing lines (7, 8) so as to form a waist opening (9) and leg openings (5, 6) separated by the crotch part (4). Outsides of the leg openings (5, 6) are limited in horizontal direction by an inside end part of the sewing line seem along the longitudinal of the sanitary short pants.The sanitary short pants have a preferably elastic cover (10) made from an elastic laminated material comprising an elastic film applied between two non-woven layers and an absorbing unit (11). The sewing lines (7, 8) are both reinforced by at least a tape of reinforcing materials (7, 8). Wherein the reinforcing materials include thermoplastic fibres and are fixed on the cover by binding agent which is adjacent to a sewing area but preferably is not provided in the sewing area.