The placenta will rise to 30mm from the cervical opening and may bleed, the placenta will rise to 30mm from the cervical opening needs to be treated seriously. The normal standard of the placenta side from the cervical opening should be more than 70mm, the placenta will rise to 30mm from the cervical opening is an abnormal situation, there may be bleeding and other discomforts, need to be observed by the pregnant woman in time. If there is bleeding and other discomforts, you need to go to the hospital in time, and may need to terminate the pregnancy early. When the placenta has risen to 30mm from the cervix, activities should be reduced, and bed rest can be provided. Raising the buttocks appropriately when lying in bed is conducive to promoting the rise of the placenta. Conduct multiple checkups to find out whether the placenta continues to rise and whether the placenta declines. Pregnant women are advised to pay attention to the situation that the placenta has risen to 30mm from the cervix and follow the doctor’s instructions.