Placenta Previa: What It Means for Your Pregnancy
Placenta previa is a pregnancy complication that is identified on ultrasound, and while it can sound alarming, understanding what it means helps you feel prepared and informed.
What Is Placenta Previa?
The placenta is the organ that provides your baby with oxygen and nutrients throughout pregnancy. Normally, it attaches to the upper wall of the uterus. In placenta previa, the placenta lies low in the uterus, partially or fully covering the cervix; the opening through which a baby would pass during a vaginal birth.
How Is It Diagnosed?
Placenta previa is typically identified at the morphology ultrasound performed between 18 and 20 weeks of pregnancy. A low-lying placenta at this stage does not always remain that way; as the uterus grows, the placenta often moves upward. A follow-up ultrasound is usually arranged at around 32 weeks to reassess the position.
What Are the Risks?
If the placenta remains low or covering the cervix in the later stages of pregnancy, the key risks include painless vaginal bleeding and an inability to deliver vaginally. Placenta previa is one of the leading indications for a planned Caesarean section.
What Should You Watch For?
Painless, bright red vaginal bleeding in the second or third trimester should always be assessed urgently. If you experience this, go directly to your nearest maternity unit.
What Does Management Involve?
Management depends on the degree of previa, whether bleeding has occurred, and your stage of pregnancy. This may include pelvic rest, hospitalisation if bleeding occurs, and planning a Caesarean section at an appropriate gestation.
Your obstetrician will guide you through every stage with a clear, individualised plan.
To discuss your pregnancy care with Dr. van der Griend, call (02) 9966 5500 or visit drvandergriend.com.au.
