How long does postpartum lochia last after a cesarean section?

The duration for lochia to completely clear after a cesarean section varies among individuals, but generally it resolves within 4–6 weeks.

This process is divided into three stages: initially, there is lochia rubra, lasting about one week, which appears bright red and contains a large amount of blood and necrotic decidual tissue; this is followed by lochia serosa, which gradually lightens in color and lasts for approximately one week; finally, lochia alba occurs, lasting about two weeks, appearing white in color and having a thick, sticky consistency.

If the lochia persists longer than normal or is excessive in amount, accompanied by symptoms such as foul odor or abdominal pain, it may indicate poor uterine contraction, intrauterine infection, or retained products of conception, and prompt medical evaluation is advised. During the lochia discharge period, postpartum women should maintain proper genital hygiene to prevent infection, and ensure adequate rest and appropriate nutrition to promote uterine recovery.