Hearing the term “placenta accreta” during a prenatal appointment can be unsettling, particularly if it comes up unexpectedly during a routine ultrasound. This condition, in which the placenta attaches too deeply into the uterine wall, is uncommon but is one that healthcare providers take seriously because of how it can affect delivery planning. For women over 35, especially those with certain pregnancy histories, understanding what this diagnosis actually involves can help replace uncertainty with useful context.
Placenta accreta spectrum disorders encompass a range of abnormal placental attachment, from accreta (attachment into the uterine wall) to the more severe increta and percreta (attachment through the uterine wall and, in the most severe cases, into nearby organs). While the condition is rare, its recognition during pregnancy—rather than at delivery—has become an important focus of modern prenatal ultrasound protocols.
Rates of placenta accreta spectrum have risen over recent decades, a trend researchers largely attribute to increasing cesarean delivery rates across the population rather than any single new risk factor. This context matters because it means the condition, while still uncommon on an individual level, has become more clinically relevant for maternal-fetal medicine teams, many of whom now have well-established protocols for screening and managing suspected cases that didn’t exist a generation ago. This growing familiarity among specialized teams is generally considered a positive development for patients, since experience managing this condition is closely tied to safer outcomes.
What Research Shows About Risk Factors
According to the American College of Obstetricians and Gynecologists, the most significant risk factor for placenta accreta spectrum is a prior cesarean delivery, with risk increasing as the number of prior cesareans increases. Maternal age over 35, placenta previa (a placenta covering the cervix), and prior uterine surgery are also factors associated with increased likelihood in the research literature. The combination of advanced maternal age with a history of cesarean delivery and a low-lying placenta in the current pregnancy is generally considered the profile most warranting closer evaluation. You can review more on ACOG’s clinical guidance for a fuller picture of how these risk factors are evaluated together.
How Placenta Accreta Is Typically Identified
Ultrasound remains the primary screening tool, often supplemented by MRI in cases where additional clarity is needed about the depth or location of placental attachment. If you’ve had advanced maternal age ultrasounds after 35, you may already be familiar with the more detailed imaging protocols sometimes used in pregnancies with additional risk factors. When placenta accreta spectrum is suspected, providers typically recommend serial ultrasounds throughout the third trimester to monitor placental positioning and attachment more closely.
Why Early Identification Matters
Identifying placenta accreta spectrum before delivery allows a care team to plan for a controlled, multidisciplinary delivery, often involving maternal-fetal medicine specialists, anesthesiologists, and sometimes urology or general surgery teams depending on severity. This kind of advance planning is associated with meaningfully better outcomes compared to unexpected discovery during delivery, according to research on this condition.
Delivery Planning Considerations
Most cases of confirmed or suspected placenta accreta spectrum are managed with a planned cesarean delivery, often scheduled somewhat earlier than full term, and in some cases followed by hysterectomy if the placenta cannot be safely separated from the uterine wall. This is a significant consideration for future fertility, which is why care teams typically have detailed conversations about the diagnosis, its implications, and available options well before the delivery date.
Coping With an Unexpected Diagnosis
A placenta accreta diagnosis can introduce significant anxiety into what might otherwise feel like a routine pregnancy, particularly for women already managing other considerations related to pregnancy after 35. It may help to know that with appropriate specialized care, many women with this diagnosis go on to have safe deliveries, even though the process looks different from a standard delivery plan. If you’re processing the emotional weight of a high-risk diagnosis, exploring how others have navigated the psychological shift into motherhood after 35 may offer some helpful perspective, alongside speaking with a mental health professional who has experience supporting patients through complex pregnancies.
Preparing for a Specialized Delivery
If you’ve been told your pregnancy involves suspected or confirmed placenta accreta spectrum, much of the remaining pregnancy will likely focus on preparation rather than uncertainty. Many maternal-fetal medicine teams schedule a coordinated planning meeting in the third trimester that may include the delivering surgeon, an anesthesiologist familiar with high-blood-loss deliveries, and sometimes a blood bank liaison to ensure adequate blood products are available on delivery day. Knowing that this level of planning is standard practice, rather than a sign that something has gone wrong, can help reframe the experience as proactive care.
Packing for delivery may also look somewhat different, since a longer hospital stay or a stay that includes time in a surgical recovery unit is more likely with this diagnosis. Discussing realistic expectations for recovery time, blood transfusion possibility, and what postpartum support you might need at home can help you and your family prepare practically as well as emotionally.
It’s also worth asking your care team directly what signs during the remaining weeks of pregnancy would warrant a call or an earlier visit, such as vaginal bleeding, since placenta accreta spectrum can sometimes be associated with bleeding before labor begins. Having this information in advance, rather than searching for it during a stressful moment, is one of the more practical ways to feel prepared for whatever the remaining weeks bring.
Frequently Asked Questions
Is placenta accreta common in pregnancies after 35?
It remains relatively rare overall, but maternal age over 35 is one of several factors associated with increased risk, particularly when combined with a history of prior cesarean delivery or placenta previa.
Will I definitely need a hysterectomy if I’m diagnosed?
Not necessarily. Management depends on the severity of the condition and individual circumstances. Some cases are managed with careful surgical removal of the placenta, while more severe cases may require hysterectomy. Your care team can discuss what applies to your specific situation.
Can placenta accreta be prevented?
There is no guaranteed way to prevent it, but reducing unnecessary cesarean deliveries when medically appropriate is one factor researchers associate with lower population-level risk over time.
What kind of specialist should I see if this is suspected?
Maternal-fetal medicine specialists typically manage suspected or confirmed placenta accreta spectrum cases, often in coordination with your primary OB/GYN and a broader delivery team.
Key Takeaways
- Placenta accreta spectrum involves abnormal, overly deep placental attachment and ranges from accreta to the more severe increta and percreta.
- Prior cesarean delivery, placenta previa, and maternal age over 35 are among the recognized risk factors.
- Ultrasound, sometimes supplemented by MRI, is the primary method for identifying this condition before delivery.
- Early identification allows for coordinated, multidisciplinary delivery planning associated with better outcomes.
- Management varies by severity and may range from careful surgical removal to hysterectomy in more severe cases.
Medical Disclaimer
This content is for informational purposes only and does not constitute medical advice. Individual health situations vary significantly. Always consult a qualified healthcare provider before making decisions related to your health, fertility, or pregnancy.
About the Author
Emily Carter is a women’s health writer focused on fertility, pregnancy after 35, and sleep changes in midlife. She writes research-informed, non-alarmist content to help women navigate reproductive and hormonal transitions with clarity and confidence.