Written by

Roxanne Albert, BSN, RNC-OB

April 27, 2026

Placenta Previa: Symptoms, Risks & What to Expect

Medical, Pregnancy

Hearing you have placenta previa—where the placenta sits near or even covers your cervix can feel overwhelming. If you’ve recently been diagnosed with placenta previa, you’re likely full of questions and concerns about what this means for you and your baby. The good news? In most cases, placenta previa resolves on its own. Let’s break it all down so you can better understand what’s happening and what to expect moving forward.

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What Is Placenta Previa?

Placenta previa is a condition where the placenta is positioned low in the uterus and is either partially or completely covering the cervix. There are a few different types:

Complete previa: The placenta fully covers the cervix
Partial previa: The placenta partially covers the cervix
Low-lying placenta: The placenta is close to, but not covering, the cervix

The type and severity of placenta previa play a big role in how your pregnancy is managed.

How Common Is Placenta Previa?

Placenta previa is often identified during the anatomy scan between 18–22 weeks, and at that stage, it can appear in about 10–30% of pregnancies.

Here’s the reassuring part:
About 90–95% of cases resolve on their own by the third trimester.

Even in more severe cases like complete previa, around 70% may still resolve before delivery.

Why Does It Resolve?

It’s not that the placenta “moves” on its own—but rather that your uterus grows and expands. As it does, it naturally pulls the placenta farther away from the cervix.

Because of this, your provider will monitor placental position with follow-up ultrasounds, typically around:

28 weeks
32 weeks
36 weeks (if needed)

Why Is Placenta Previa a Concern?

The primary concern with placenta previa is bleeding.

Both the cervix and placenta are highly vascular, meaning they have a lot of blood flow. As your cervix begins to soften and thin later in pregnancy, the placenta can start to detach slightly (called “shearing”), which may cause:

Sudden, painless vaginal bleeding
Heavy bleeding episodes

This bleeding can impact both you and your baby and may require medical intervention.

Potential Risks

While many cases resolve, placenta previa can increase the risk of:

Preterm birth (often due to needing early delivery, not early labor)
Cesarean delivery (C-section)
Bleeding during pregnancy
Postpartum hemorrhage

If bleeding becomes significant, hospitalization may be necessary for monitoring and to prolong pregnancy safely.

How Is It Managed?

Management depends on:

How much of the cervix is covered
Whether you’re experiencing bleeding
How your baby is doing

If There’s No Bleeding:

Regular monitoring with ultrasounds
Pelvic rest (no intercourse or anything inserted vaginally)
Possible continuation of normal daily activity with some modifications

If Bleeding Occurs:

Closer monitoring
Possible hospitalization
In some cases, early delivery may be necessary

If placenta previa persists near term, a planned C-section is typically recommended to ensure a safe delivery.

What About Exercise and Activity?

This is one of the most common questions—and the answer is: it depends.

General Guidelines:

Pelvic rest is usually recommended
Activity may be less restricted early on, especially if there’s no bleeding
If placenta previa persists into the third trimester, activity may be more limited

Exercise Considerations:

Light to moderate activity (like walking or mobility work) is often okay
Avoid:
- High-intensity workouts
- Heavy lifting
- Deep squats or movements that increase pressure on the cervix
- Activities that significantly increase intra-abdominal pressure

There isn’t strong evidence that exercise directly causes complications—but many providers take a cautious approach to reduce any potential risk of bleeding.

The key here is individualization. Your exercise plan should be based on:

Your symptoms
Your placenta’s position
Your overall pregnancy health

Always have an open conversation with your provider about what feels safe and sustainable for you.

Listening to Your Body (and Your Provider)

If you experience any vaginal bleeding—especially sudden or heavy—contact your provider immediately.

Even spotting should be taken seriously and may lead to adjusting your activity level.

The Emotional Side of Diagnosis

Getting this diagnosis can feel scary, even knowing that most cases resolve. It’s completely normal to feel anxious or uncertain.

Give yourself time to process the information, ask questions, and lean on your provider for guidance. Understanding the condition can go a long way in helping you feel more confident and prepared.

Final Thoughts

Placenta previa is a condition that sounds intimidating—but in most cases, it improves on its own as your pregnancy progresses.

To recap:

It’s commonly diagnosed mid-pregnancy
Most cases resolve before delivery
The main concern is bleeding
Care includes monitoring, activity adjustments, and sometimes delivery planning

Every pregnancy is different, so your care plan should reflect your unique situation. Stay informed, communicate openly with your provider, and focus on what you can control.