Placental adhesions may reoccur in the next pregnancy, but it is impossible to generalize because of individual variability. Placental adhesion is the invasion of placental villi into the superficial layer of the uterine wall, which cannot be peeled off by itself. Its causes include endometritis, multiple abortions, and bacterial infections. If a patient develops placenta adhesion, the possibility of placenta adhesion exists in the next pregnancy, and some patients may not develop placenta adhesion, so it is impossible to generalize. In order to prevent placental adhesion, it is necessary to avoid repeated abortions or curettage, and to publicize correct contraceptive knowledge. Avoiding repeated abortions, actively treating vaginal inflammation during pregnancy, preventing premature rupture of membranes, and controlling intrauterine infections in a timely manner can effectively reduce the incidence of placental adhesions. It is recommended that patients with a history of placental adhesions should follow the doctor’s instructions for regular review during the preparation for pregnancy.