At 23 weeks, the lower margin of the placenta covers the internal opening of the cervix and grows up

If the lower edge of the placenta covers the internal os, this is a placental abnormality. If it is 23 weeks, it is possible that the placenta will move upward as the fetus grows. At this time, we need to pay attention to bed rest, no strenuous exercise, and no sex life. To prevent bleeding. If the placenta still covers the internal os of the cervix after more than 28 weeks, it is very dangerous to pay attention to this. You must go to the hospital in time for corresponding rectification, which may even endanger your life.