A small amount of bleeding 1 month after cervical cerclage is not normal, consider infection or poor wound healing, you should go to the hospital to find out the cause. 1. Infection: the discharge is abundant and yellow, sometimes there will be a feeling of lower abdominal distension, if the infection is serious, erosion of blood vessels, vaginal bleeding may also occur. 2. Poor wound healing: there will be a period of healing after cervical cerclage, there may be a small amount of bleeding after the operation, there may be red watery secretion, bleeding basically stops in about 15 days, and there is still a small amount of bleeding in more than one month, considering that there may be poor wound healing. After cervical cerclage, you should pay attention to keep the vulva clean, not to use vaginal pessary or vaginal douching, and follow the doctor’s instructions for regular checkups. If bleeding still occurs more than one month after the operation, you should go to the hospital in time to find out the cause and actively treat the cause and symptoms.