Low-lying placenta: Does it move up during pregnancy?
A low-lying placenta means the placenta is positioned close to the cervix, most often seen in the first half of pregnancy. In most cases, as the uterus expands, the placenta moves higher up the uterine wall, reducing risks as pregnancy progresses. This is a common finding and rarely causes lasting problems for most expectant mothers.
It’s important to know that a low-lying placenta is not the same as placenta previa, where the placenta fully or partially covers the cervix. With a low-lying placenta, the position often improves naturally as the uterus grows, especially in the second and third trimesters.
What is a low-lying placenta? 🩺
The placenta is the organ that supplies your baby with nutrients and oxygen. Normally, it attaches to the upper part of the uterus. When the placenta is close to the cervix, it’s called a low-lying placenta.
This condition is common early in pregnancy because the uterus is still small, and the placenta’s position can change as the uterus grows.
How does the placenta’s position change during pregnancy?
As your baby grows, your uterus expands. This natural growth can cause the placenta to “move up” the uterine wall. Ultrasound scans often show that a placenta which was low-lying earlier in pregnancy is further from the cervix as the weeks go by.
By the end of the second trimester and into the third, most placentas are no longer considered low-lying and do not pose a risk.
Real-life examples: What do ultrasounds show?
- 12 weeks: The placenta may appear close to the cervix on ultrasound.
- 20 weeks: As the uterus grows, the placenta is usually further away.
- 32 weeks: In most cases, the placenta no longer touches the cervix.
Doctors routinely monitor placental position, especially if a low-lying placenta was seen earlier in pregnancy.
What are the risks of a low-lying placenta?
Most of the time, the placenta moves up and away from the cervix. In some cases, it remains low, which can increase the risk of bleeding, preterm birth, or placenta previa.
Possible risks include:
- Bright red bleeding in the second half of pregnancy
- Risk of preterm birth
- Development of placenta previa
- Rarely, problems with oxygen and nutrient supply to the baby
The level of risk depends on how close the placenta is to the cervix later in pregnancy.
Medical background: Why does the placenta move up?
As the uterus grows, the attachment point of the placenta doesn’t actually shift, but the stretching of the uterine wall means the placenta ends up further from the cervix. That’s why a low-lying placenta often resolves on its own as pregnancy advances.
Ultrasound scans help track this process and alert your doctor if further monitoring or intervention is needed.
When should you see a doctor? 🚨
A low-lying placenta usually doesn’t require immediate treatment, but regular medical checkups are important. Contact your doctor right away if you notice:
- Bright red vaginal bleeding
- Severe lower abdominal pain
- Dizziness or weakness
- Painful uterine contractions
Your doctor will use ultrasound to check the placenta’s position and may recommend additional tests if needed.
What can you do if you’re diagnosed with a low-lying placenta?
- Follow your doctor’s advice and attend all scheduled checkups.
- Avoid strenuous physical activity, especially if you have any bleeding.
- Pay attention to your body’s signals and keep track of any symptoms.
- Rest as recommended by your healthcare provider.
Most women do not need special treatment, just extra attention and regular monitoring.
Supportive thoughts for your pregnancy 💛
A diagnosis of low-lying placenta can be worrying, but in most cases, the placenta moves up as pregnancy progresses and does not cause lasting problems. If you’re unsure or have questions, reach out to your doctor—regular checkups and expert support help you feel safe and confident.
Staying informed and calmly attentive helps you navigate pregnancy with confidence. You’ll find more helpful guides and tips in our free app, where expert support is available for everyday questions.