There are more reasons for fresh blood to keep coming out after cervical cerclage, which may be caused by damage to the surgical incision site, cervical injury, or preterm miscarriage. Cervical cerclage is a precautionary measure done in mid-pregnancy to prevent miscarriage or preterm labor due to cervical dysfunction, and it is normal to have a small amount of vaginal bleeding after the procedure. If you keep bleeding after cervical cerclage, it may be due to damage to the incision suture site during surgery, causing blood vessels to rupture and bleeding to occur. After the surgical incision is closed, the cervix will locally secrete prostaglandins, which will stimulate the capillaries to rupture and trigger bleeding. Some women will experience contractions after surgery, which may cause damage to the surgical site of the cervix when stimulated by the contractions. Contractions may also lead to the occurrence of miscarriage or preeclampsia with symptoms of vaginal bleeding. Therefore, if you keep bleeding after cervical cerclage, you should consult a doctor in time, complete the relevant examination, clarify the cause of the disease under the guidance of a professional doctor, and target treatment to avoid delaying your condition.