Whether or not you can have a normal delivery three years after a cesarean section depends on the thickness of the uterine scar, the size of the fetus, etc. If the thickness of the uterine scar is small and the size of the fetus is normal, you can have a normal delivery, but on the contrary, it is generally not recommended to have a normal delivery. 1. The thickness of the uterine scar: three years after the cesarean section, if the pregnant woman wants to have a normal delivery, she needs to pay attention to monitoring the thickness of the uterine scar in the late pregnancy. In general, if the thickness of the uterine scar is less than 2.0 millimeters, it is not recommended to have a normal delivery, which may lead to uterine rupture. 2. Fetal size: three years after cesarean section, if you want to have a normal delivery, you need to pay attention to the measurement of the size of the fetus, if the fetus is estimated to be relatively large, more than 6.5 catties or more, it is not recommended that pregnant women have a normal delivery. It is recommended that pregnant women should pay attention to regular checkups, find problems at any time and deal with them at any time, and consult with a specialist according to their own situation.