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In a recent Healthful Woman episode, “Why All the Fuss About Advanced Maternal Age?” host Dr. Nathan Fox speaks with Dr. Stephanie Melka, an OB-GYN who requested the topic herself, since she’s in the age group in question and fields the same worried questions from patients and friends alike. Together they unpack where the term “advanced maternal age” actually came from, and what turning 35 really does and doesn’t change about a pregnancy.

Where “Advanced Maternal Age” Actually Came From

The label, sometimes worded even less kindly as “elderly” or “geriatric” pregnancy on medical coding sheets, has nothing to do with a woman’s overall health. Dr. Fox explains that the age 35 cutoff was set decades ago purely around Down syndrome screening. Before modern screening existed, doctors had to decide who should be offered an amniocentesis, a procedure that carried its own miscarriage risk of roughly 1 in 200 at the time. “At what point in life is the risk of Down syndrome 1 in 200? That was 35,” Dr. Fox says. It was a line in the sand for a decision that barely exists anymore now that far less invasive genetic counseling and screening options are standard, yet the label stuck around long after its original purpose faded.

Fertility and Miscarriage: The One Risk That’s Hardest to Screen Around

Once the genetic-screening confusion is cleared up, Dr. Melka and Dr. Fox turn to what actually does change with age. Fertility and early miscarriage risk top the list. “Generally, the older we get, the harder it is to get pregnant,” Dr. Melka says, and that’s largely a function of biology rather than anything a screening test can catch or a lifestyle change can fully offset. It’s the one area, Dr. Fox notes, where age itself is the dominant factor, which is why some women eventually turn to fertility treatment.

Placenta, Diabetes, and Preeclampsia: What Really Shifts With Age

Placenta previa, growth restriction, gestational diabetes, and preeclampsia all become somewhat more common with age, though not all carry equal weight. Dr. Melka has a memorable way of framing gestational diabetes for patients: “In terms of danger, it’s a one. In terms of annoyance, it’s a 12 out of 10.” Preeclampsia is the opposite story, low nuisance but higher stakes, which is why women over 35 are typically counseled toward baby aspirin and closer blood pressure monitoring throughout pregnancy. Ongoing prenatal imaging, including the kind of detailed ultrasound monitoring available throughout pregnancy, plays a role in tracking placenta location and function as these risks are followed.

Weighing the Timing of Delivery

Toward the end of pregnancy, the conversation shifts to stillbirth risk, which does rise with age, largely tied to gradual declines in placental function. Rather than alarm patients, Dr. Melka folds it into a practical plan: weekly ultrasounds and fetal monitoring starting around 36 weeks, with delivery generally recommended by 41 weeks. Dr. Fox shares that a large internal review of their own practice’s patients over 35 found stillbirth rates no higher than the general population once this monitoring protocol was followed, reassuring evidence that structured surveillance can offset much of the added risk.

The Takeaway: Health Matters More Than the Number

Both doctors return again and again to the same point: age is one factor among many, and rarely the most important one. A healthy 43-year-old typically carries a lower risk profile than a 33-year-old managing obesity, high blood pressure, or diabetes. “Most women, if they’re pregnant, no matter what their age is, they’re most likely going to do fine,” Dr. Fox says. The advice is simple: know your own health history, find a doctor who understands what to watch for, and don’t let a decades-old cutoff dictate how you feel about your pregnancy.

Listen to the Full Episode

To hear Dr. Fox and Dr. Melka’s full conversation, including their discussion of C-section rates and repeat pregnancy complications, listen to “Why All the Fuss About Advanced Maternal Age?” on the Healthful Woman podcast. If you have questions about your own pregnancy, you can schedule a consultation with the Carnegie Imaging team.

Carnegie Imaging for Women blogs are intended for educational purposes only and do not replace certified professional care. Medical conditions vary and change frequently. Please ask your doctor any questions you may have regarding your condition to receive a proper diagnosis or risk analysis. Thank you!