The number of weeks a borderline placenta previa can last is affected by the condition as well as individual differences, and there is no standardized criteria for how long the exact gestational week can be reached. After 28 weeks of pregnancy, when a woman’s lower edge of the placenta is detected by ultrasound to be attached to the lower segment of the uterus, and the lower edge reaches the endocervical os, but does not go beyond the endocervical os, it is called a borderline placenta praevia. For pregnant women <34 weeks of gestation, fetal weight <2000g, fetal survival, little vaginal bleeding, and in good general condition, prolongation of the pregnancy may be considered to hold out until the appropriate time for delivery. Some pregnant women should consider termination of pregnancy if the following conditions occur, such as greater than 35 weeks of gestation, increased frequency of uterine contractions, and increased bleeding rate. Signs of fetal distress at 34 to 36 weeks of gestation. In cases of recurrent heavy bleeding or even shock, the pregnancy should be terminated for the safety of the woman, regardless of fetal maturity. Women with borderline placenta previa should strictly avoid heavy physical labor, sexual intercourse, and abnormal mood swings. Pay attention to balanced nutrition and reasonable diet. At the same time, it is necessary to do a good job of pregnancy checkups, once vaginal bleeding, should go to the hospital in time.