Marginal insertion of the umbilical cord should pay attention to regular labor and delivery examination, pay attention to the change of fetal movement, and observe the vaginal bleeding. 1. On-time checkup: marginal insertion of the umbilical cord suggests racket placenta or umbilical cord with sail-like attachment. Racket placenta generally has no significant effect on the mother and child, but when the umbilical cord is attached to the umbilical cord in the form of a sail, as it is easy to combine with the anterior vessels, and the anterior vessels lack the protection of the Huatong gel and are prone to rupture, which may lead to fetal distress and other risks, it is necessary to strengthen the maternal checkup during pregnancy, and to monitor the changes in fetal heartbeat and fetal movement closely. 2. Pay attention to the changes of fetal movement: after 28 weeks of pregnancy, we should strictly count the fetal movement, and be able to self-evaluate the intrauterine condition of the fetus, which is normally ≥10 times/2 hours, and we should go to the hospital in time when there is a decrease or disappearance of fetal movement. 3. Observation of vaginal bleeding: when the umbilical cord is attached to the umbilical cord in the form of a sail and there is a combination of anterior vascularization, when the fetal prelude is squeezed by contractions or when the membranes are ruptured, vaginal bleeding occurs, and it is necessary to go to the hospital immediately for medical treatment. When the diagnosis is clear during pregnancy, the management of pregnancy should be strengthened, and the pregnancy can be terminated at the right time after the fetus matures according to the doctor’s advice, so as to ensure the safety of mother and baby.