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What is placenta previa?


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May 14, 2009 10:30PM

During pregnancy, the placenta attaches itself to the uterus to provide the developing fetus blood, oxygen, and nourishment as well as removing waste from your baby. The placenta may implant itself at a low position in the uterus, during the early stages of pregnancy. Normally, as the uterus begins to expand to provide more room for your baby, the placenta moves upward but away of the cervix. If it doesn't move away, it may be blocking the opening of the cervix. This is known as placenta previa. If this does occur, the placenta will detach itself from the uterus in advance as the cervix begins to open up for labor. Generally, placenta previa can be detected before any severe harm is caused.