What are the placenta and umbilical cord?
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The placenta is an organ that grows on the inside, upper part of your uterus (womb) when you're pregnant
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It has many large blood vessels to carry oxygen and nutrients from you to your baby
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The placenta's blood vessels form the umbilical cord to connect the placenta to your baby
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About 15 minutes after you deliver your baby, the placenta comes off your uterus and goes out your vagina
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That's why it is also called the "afterbirth"
What is vasa previa?
Vasa previa is a problem with the blood vessels in the placenta. In vasa previa:
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Some of the blood vessels don't go directly from the placenta to the umbilical cord the way they should
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Instead, they're in the wrong place and go through the membranes (amniotic sac) that surround your baby
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Your amniotic sac breaks open (ruptures) and amniotic fluid leaks out when labor starts—this is called having your "water break"
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When your water breaks, the blood vessels that are in the wrong place can tear
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This may cause your baby to lose a lot of blood or even die
What are the symptoms of vasa previa?
How can doctors tell if I have vasa previa?
Doctors may suspect vasa previa if an earlier routine ultrasound shows problems with the placenta. An ultrasound uses sound waves to create moving pictures of the insides of your uterus. A follow-up ultrasound, usually done with a device inserted into your vagina, can confirm that you have vasa previa.
How do doctors treat vasa previa?
If vasa previa is diagnosed before labor:
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Doctors will see you twice a week to check on your baby
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You may be hospitalized when you're 30 to 32 weeks pregnant, so that doctors can check on your baby all the time
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You may be given a medicine called a corticosteroid to help your baby’s lungs grow
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If you're between 32 and 35 weeks pregnant and your baby's lungs are developed enough, your doctors may suggest scheduling surgery to deliver your baby
Surgery to deliver a baby is called a cesarean section (C-section). You may have an emergency C-section if:
