The sanitary napkin is an essential personal hygiene product designed specifically for women during their menstrual cycle. Its main function is to absorb menstrual fluid, providing comfort, safety, and convenience. Technological features include a absorbent core made from superabsorbent polymers, a moisture-proof barrier to prevent leaks, and a soft, breathable outer layer for increased comfort. Sanitary napkins come in various shapes and sizes to accommodate different flow levels and body types. They are typically worn by being adhered to the underwear and are disposed of after use. Applications of the sanitary napkin extend to everyday use for women during their period, as well as for postpartum bleeding and other fluid-discharge situations.