How long does it take for postpartum lochia to completely clear up?

The discharge of lochia is a normal physiological phenomenon for women during the postpartum period, typically lasting four to six weeks before completely resolving. Lochia discharge occurs in three stages: 1. Bloody lochia, lasting about three days, is bright red in color and primarily composed of blood and small amounts of necrotic decidua tissue. 2. Serous lochia, lasting approximately one to two weeks, appears pale red and contains large amounts of necrotic decidua tissue, uterine exudate, and other fluids. 3. White lochia, continuing for about three weeks, is whitish in color and mainly consists of white blood cells and shed vaginal epithelial cells. Throughout the entire process, the total volume of lochia usually reaches around 500 mL. If placental or fetal membrane remnants remain or if postpartum infection occurs, the duration of lochia discharge may be prolonged and accompanied by an unpleasant odor. During the lochial phase, mothers should maintain a light diet and avoid spicy or irritating foods to promote normal lochia expulsion.