A lot of period after cesarean section usually refers to increased bleeding, it is recommended to go to the hospital for examination in time to clarify whether it is normal bleeding, if it is caused by the uterine cavity residue, timely intervention to clear the uterus, if it is caused by physiological reasons, you should keep a good mood and take sufficient rest. 1. Uterine residue: Abnormal increase in bleeding after cesarean section may be caused by tissue residue in the uterine cavity, if there is a large placenta and fetal membranes that are not discharged, it may cause sudden increase in bleeding, and the uterus should be cleared as soon as possible. 2. Physiological reasons: Cesarean section has a large traumatic damage to the female organism, if due to surgical reasons lead to hormonal imbalance in the body to appear menstrual bleeding abnormally increased, you should maintain a good mood, and at the same time, adequate rest, to ensure adequate sleep, in order to regulate their own physical condition. There may also be other reasons for increased menstrual flow after cesarean section, so it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy.