The problem of the lower edge of the placenta covering the endocervix at 12 weeks of pregnancy is not considered serious, generally related to the small gestational weeks and the small size of the uterine cavity, with the increase of the gestational weeks, the placenta may be moved upward, but the process of pregnancy should be vigilant about the occurrence of fetal abortion.
Normal placenta attached to the anterior wall of the uterus, the posterior wall, the left wall, the right wall, the bottom of the uterus, 12 weeks gestation placenta attached to the cervix or close to the cervix is a state of low position of the placenta, mainly due to the gestational week is relatively small, the uterine cavity is also relatively small, the placenta is relative to the uterus is relatively large in size, it will cover the inner cervical opening.
With the increase of gestational weeks and the gradual development of the fetus, the lower end of the cervix gradually lengthened, the placenta may move to the normal position, this problem is not serious.
If you are pregnant, you should have a good pregnancy checkup, so that any abnormality can be dealt with in time.