Sanitary napkin for heavy uterine bleeding

An absorbent sanitary napkin (1) comprising fold back wings (3) and an absorbent core (2) interposed between an upper fluid-permeable layer (4) and a lower fluid-impermeable layer (5), the sanitary napkin (1) having a longitudinal central axis (y-y) and a transverse central axis (o-o), a pair of transverse sides (10) and a pair of longitudinal sides (9) extending therebetween, a front edge (6) and a rear edge (7) positioned on opposite apexes of said transverse sides (10);

• the fold back wings (3) extending transversely beyond the longitudinal sides (9) of the sanitary napkin (1) and comprising a transverse axis (x-x) dividing said fold back wings (3) into two substantially equal halves in a longitudinal direction parallel to the longitudinal central axis (y-y), said transverse axis (x-x) of the fold back wings (3) being offset from the sanitary napkin transverse central axis (o-o) toward the front edge (6) of the sanitary napkin (1), characterized in that the fold back wings (3) are positioned along the sanitary napkin such that an overall length ratio corresponds to the following equation:
• L*(L1/L2)>29 cm
• where L is the total length of the sanitary napkin taken along the longitudinal central axis (y-y), said total length L is between 25 and 40 cm, L1 is the distance from the transverse axis (x-x) of the fold back wings (3) to the front edge (6), and L2 is the distance from the transverse axis (x-x) of the fold back wings (3) to the rear edge (7).