Whether it is okay for the placenta to be on the anterior wall in a second cesarean section will depend on the distance of the placenta from the scar of the first cesarean section; it is relatively safe if it is more than 2 centimeters away; less than 2 centimeters away may pose some risk. It is relatively safe for the placenta to be more than 2 centimeters away from the uterine scar. Otherwise, because the closer the placenta is to the scar, there is a high risk of early miscarriage, fetal arrest and stillbirth; due to the gradual increase in the size of the pregnant woman’s abdomen, the decrease in the elasticity of the uterus, and the presence of the scar, it is easy for complications such as implantation of the placenta or placenta previa, and the uterus is prone to rupture, which may even jeopardize the lives of the pregnant woman and the fetus. Women with a history of cesarean section need to go to the hospital in time once they are pregnant, and be given relevant examinations by a professional doctor to clarify the location of the placenta gathering the scar and assess the thickness of the tissue at the scar. Prohibit coitus during pregnancy and refrain from strenuous exercise to prevent danger. Do the maternity checkups as required, and consult the doctor in time when there is abdominal pain and pain or vaginal bleeding.