Placenta praevia is more likely to result in placenta implantation, but it is not absolute.
Placenta praevia means that the lower edge of the placenta is less than three centimeters from the endocervical os or covers the endocervical os, resulting in an abnormal change in the blood supply at the placenta, and the placenta, in an attempt to obtain more blood supply, will invade the myometrium, resulting in the formation of placenta implantation.
In addition to placenta previa, placenta implantation is also associated with a history of cesarean section, repeated multiple miscarriages or purging, etc. Especially if the placenta covers the scarred area of the last cesarean section, the risk of placenta implantation is also increased.
For pregnant women with placenta praevia, they need to visit the doctor to improve the relevant ultrasound examination, and pay more attention to determine whether there is placenta implantation phenomenon.