If the discharge turns bright red color 10 days after delivery, it is considered to be caused by residue in the uterus or puerperal infection. 10 days after giving birth, the discharge should be plasma discharge, and the color of plasma discharge is light red. If it is caused by residue in the uterine cavity, it needs to be cleared as soon as possible. If it is caused by puerperal infection, it will be accompanied by different degrees of fever, abdominal pain, abdominal distension, and fever with gradual increase in bleeding, and the treatment is mainly based on anti-infective treatment, which will be treated with intravenous input of anti-infective drugs. After the puerperal infection is under control, the color of the discharge will become light pink and gradually increase to white. Breastfeeding is not recommended during the treatment of puerperal infection so as not to affect the baby.