Cesarean section 55 days and still have bad dew is not normal, may be the uterus is not good, the uterine cavity residue, infection and other reasons, need to consult a doctor in time to check, clarify the cause of the disease, targeted treatment. 1. Poor uterine recovery: the uterus usually returns to normal 42 days after delivery, if there is still vaginal bleeding beyond 42 days, the uterus may be poorly recovered, you can give uterine contractions under the guidance of the doctor, such as contractions, etc. for treatment. 2. Uterine residue: Placenta and membranous tissue residue in the uterus can also lead to persistent uterine bleeding. Through ultrasonography, you can observe whether there is any residue in the uterine cavity. If there is any uterine residue, you need to have the uterus cleared or treated with uterine constrictor in time. 3. Infection: there is endometritis, poor healing of uterine incision can also bleed vaginal bleeding persistent, can be under the guidance of the doctor to use antibiotics, such as penicillin, cephalosporin and other treatments. Cesarean section 42 days after the general no longer have bad dew, if 55 days still have bad dew is not normal, need to seek medical treatment.