It usually takes 4 to 6 weeks after delivery for the discharge to be complete, but there are individual differences. Postpartum discharge refers to the discharge of shed uterine membranes, blood and other tissues from the vagina. The discharge is odorless but has a bloody taste, and usually lasts 4~6 weeks before it is completely discharged, but there may be individual differences. According to the content, color and time of the discharge, it can be classified as bloody, plasma and white discharge. After delivery, it is necessary to observe the contractions and discharge of the discharge. Mothers should pay attention to proper rest after delivery, pay attention to personal hygiene, keep the vulva clean and dry, change underwear and sanitary products frequently, and increase diet and nutrition to promote physical recovery. When the discharge is long and smelly, you should go to the hospital in time.