A maternal fetal medicine specialist is a physician with advanced training in caring for women with high-risk pregnancy concerns and complex medical conditions that may affect their pregnancy.
If you’ve recently been referred to a maternal fetal medicine specialist – or you’re wondering when you might need maternal fetal medicine care – you’re not alone in having questions.
You may also be concerned about someone in your family who’s been referred with a high-risk pregnancy.
Although the word and terms used can sound worrying, being referred is actually a good thing! That’s because maternal fetal medicine (often called MFM) focuses on specialized pregnancy care when closer monitoring may improve outcomes for you and your baby.
And being referred doesn’t automatically mean something is wrong.
In many cases, a referral simply means your OBGYN wants an expert partner involved to provide additional insight, advanced imaging, or preventive monitoring.
Our Stella Mattina doctors are always proactive with collaborative high-risk pregnancy care. Our goal is always the same: Support the healthiest possible pregnancy for both you and your baby.
Read on to discover everything you need to know about seeing a maternal fetal medicine specialist.
Table of contents
What Makes a Pregnancy High Risk?
Medical Conditions That May Require a Maternal Fetal Medicine Specialist
Pregnancy-Related Complications That Lead to Referral to an MFM
Genetic Concerns Need Advanced Screening
Advanced Maternal Age and Pregnancy
What to Expect After You’re Referred to a Maternal Fetal Medicine Specialist
How a Maternal Fetal Medicine Specialist Works With Your Care Team
Why Early Referral to an MFM Matters
What Makes a Pregnancy High Risk?
We’ll start with a definition. A high-risk pregnancy means that certain factors may increase your chances of complications.
But risk exists on a spectrum. Some women only need a single consultation with an MFM specialist for additional evaluation or reassurance. Others benefit from ongoing co-management alongside their OBGYN throughout pregnancy.
Pregnancy risk factors may relate to your medical history, conditions that develop during pregnancy, concerns identified on ultrasound, genetic screening results, or age-related considerations.
Sometimes the reason is straightforward, such as high blood pressure or diabetes. Other times, it may be a particular finding that requires a closer look.
Being labeled “high-risk pregnancy” does not mean your pregnancy is unsafe. It means your care team is choosing more specialized monitoring to reduce complications and support the best possible outcome for you and your baby.
If you’re unsure when to see maternal fetal medicine, a referral often happens when advanced imaging, deeper evaluation, or expert input would add clarity and strengthen your care plan.
Let’s now look at when some expert input might be useful.
Medical Conditions That May Require a Maternal Fetal Medicine Specialist
If you have certain maternal medical conditions during pregnancy, your body may need additional support.
Why? Because pregnancy is not a neutral state! It increases blood volume, raises your cardiac output, shifts your hormone levels, and changes how your kidneys and immune system function.
Most women tolerate these normal changes well. But if you already have a medical condition, pregnancy can place extra strain on your body.
It’s the maternal fetal medicine specialist’s job to evaluate how those physiologic changes interact with your existing condition – and adjust monitoring to protect both you and your baby.
Here are some of the more common conditions that may lead to a maternal fetal medicine referral.
High Blood Pressure and Pregnancy
High blood pressure pregnancy concerns require careful monitoring because pregnancy naturally increases the workload on your heart and blood vessels.
Raised blood pressure can increase the risk of developing preeclampsia. This is a condition marked by high blood pressure and signs that organs such as the kidneys or liver are under stress.
A maternal fetal medicine specialist closely monitors your blood pressure over time, your baby’s growth, and blood flow to the placenta. Detailed ultrasound and Doppler studies can assess how well oxygen and nutrients are reaching your baby.
Early detection of changes allows your care team to adjust treatment or plan delivery timing safely.
Diabetes Before or During Pregnancy
Whether you have preexisting diabetes or develop gestational diabetes, consistently raised blood sugar can affect fetal growth and development.
Babies may grow larger than expected, which can complicate delivery. In some cases, you may experience fetal growth restriction.
A MFM specialist works with you and your care team to coordinate glucose management, ultrasound visits, and growth monitoring.
Close surveillance helps ensure your baby is growing appropriately and reduces the risk of complications before and after delivery.
Autoimmune and Blood Clotting Disorders
Autoimmune conditions such as Lupus and certain blood clotting disorders can affect your placenta’s ability to function normally.
Because the placenta supplies oxygen and nutrients to your baby, any disruption requires careful observation.
Specialized monitoring by your maternal fetal medicine specialist helps detect early signs of placenta complications or fetal growth restriction. In some cases, medication adjustments or preventive strategies are helpful to reduce risk.
Heart Disease or Chronic Medical Conditions
Pregnancy increases blood volume by as much as 40–50%, which places additional demand on your heart. For women with underlying heart disease, even mild symptoms before pregnancy can become more significant as pregnancy progresses.
Kidney disease, thyroid disorders, neurologic conditions, and other chronic illnesses may also require closer monitoring.
A high-risk pregnancy doctor evaluates how pregnancy may alter your condition and works collaboratively with your other specialists to adjust medications and plan safe delivery.
In these cases, a maternal fetal medicine referral strengthens communication between providers and ensures that care for a “maternal medical conditions pregnancy” is proactive rather than reactive.
The goal is always stability, prevention of complications, and thoughtful planning for delivery.
Pregnancy-Related Complications That Lead to Referral to a Maternal Fetal Medicine Specialist
Not all concerns arise from preexisting concerns like the ones above. Sometimes concerns arise during pregnancy itself.
Here are some that might give rise to your referral to an MFM:
Abnormal Ultrasound Findings
You have several ultrasound scans during your pregnancy. An abnormal ultrasound pregnancy result may require advanced imaging.
MFM specialists perform detailed anatomical scans to better understand those findings and guide the next steps.
Fetal Growth Restriction
Fetal growth restriction means your baby is measuring smaller than expected. Specialized ultrasound evaluates blood flow, placental function, and growth patterns to guide the best monitoring and delivery timing for you.
Multiple Gestation Pregnancy
A multiple gestation pregnancy, such as twins or higher-order multiples, increases the need for closer monitoring.
That’s because growth differences between the babies, preterm labor risk (the chance of delivering early), and placental concerns are more common in multiples.
Your MFM specialist takes all this into account and works with your healthcare team to keep you safe.
Placenta Complications
Placenta complications such as previa (when it’s covering the cervix) or Placenta Accreta Spectrum Disorder (where it grows into your uterus) require expert evaluation and delivery planning.
Your MFM specialist decides what extra care you need throughout your pregnancy.
Risk of Preterm Labor
Short cervical length or early contractions may prompt referral to a maternal fetal medicine specialist for closer monitoring and preventive strategies.
Advanced pregnancy ultrasound and regular follow-up will help ensure both safety and timely intervention for you when needed.
Genetic Concerns That Need Advanced Screening from a High-Risk Pregnancy Doctor
Genetic screening for pregnancy concerns are another common reason your OBGYN may recommend consultation with a maternal fetal medicine specialist.
These referrals are often about gaining clarity – not because something is definitively wrong. Screening tests estimate risk. Diagnostic tests provide clearer answers.
An MFM specialist helps you understand test results and guides you through your options with calm, evidence-based information.
Family History or Inherited Conditions
If there’s a known family history of inherited disorders, your OBGYN may refer you for specialized evaluation. Certain genetic conditions can increase the likelihood of chromosomal or structural concerns during pregnancy.
A maternal fetal medicine specialist reviews your family history in detail and may recommend additional screening or diagnostic testing. This may include advanced blood work or targeted ultrasound to assess fetal development more closely.
Genetic counselors often help at this stage. They can explain inheritance patterns, outline potential outcomes, and help you understand the level of risk.
Their role is educational and supportive – giving you clear information so you feel supported to make decisions with confidence throughout your pregnancy.
Abnormal Blood Tests or Screening Results
Abnormal results from noninvasive prenatal testing or other chromosomal blood work may also require further evaluation.
An MFM specialist explains what your results mean and discusses diagnostic options clearly and calmly.
Genetic counselors often have a role here, too. They work alongside maternal fetal medicine specialists to guide testing and interpretation so you can be clear about your options during pregnancy.
Advanced Maternal Age and Pregnancy: Preventive Care from Your MFM
An advanced maternal age pregnancy – typically if you’re aged 35 or older at delivery – can carry a slightly increased risk of chromosomal conditions, high blood pressure pregnancy, and gestational diabetes pregnancy.
But age alone doesn’t mean something is wrong.
In many cases, referral is preventive. Additional ultrasounds or screening may simply provide reassurance and proactive monitoring.
What to Expect After You’re Referred to a Maternal Fetal Medicine Specialist
An OBGYN referral to MFM is usually straightforward and collaborative.
Your first appointment may include:
- A detailed review of your medical and pregnancy history
- An advanced pregnancy ultrasound
- Discussion of pregnancy risk factors
- A personalized monitoring plan
- Communication with your primary OBGYN
Some patients need only one consultation. Others benefit from ongoing co-management, depending on the complexity of their high-risk pregnancy care.
But rest assured, your care remains coordinated. You’re not “handed off.” Instead, your providers work together to ensure the best outcomes for you and your baby’s health.
How a Maternal Fetal Medicine Specialist Works With Your Care Team
Specialized pregnancy care is team-based, as we mentioned. An OBGYN referral to MFM is only part of the story.
Your maternal fetal medicine specialist will collaborate closely with not only your OBGYN but also your primary care providers, any subspecialists (such as cardiology, endocrinology, or rheumatology doctors, etc.), and neonatology teams when needed.
Planned and structured communication between all your care team strengthens your safety and reduces uncertainty.
Neonatal (post birth) teams are an excellent resource for OBGYNs and MFMs because delivery planning is a significant part of your overall care in a high-risk pregnancy.
If advanced neonatal support is necessary, coordination with a neonatal intensive care unit (NICU) can be arranged in advance.
If you’re now concerned about NICU facilities for maternal fetal medicine in Dallas… All our maternal fetal medicine specialists work in hospital neonatal intensive care units in Dallas and Arlington.
Why Early Referral to an MFM Matters
If your OBGYN can identify risks early, referral to an MFM often reduces complications later.
Close monitoring supports early detection of concerns, well-timed adjustments to your treatment, better delivery planning to meet your unique needs – and, crucially, emotional reassurance that you’re in the safest place possible.
The answer to the question when to see maternal fetal medicine is usually “sooner rather than later.” Knowing about a risk can often make sure you avoid it! And early guidance on unavoidable risks provides you with clarity about how to proceed.
Stella Mattina: Your Maternal Fetal Medicine Dallas Specialist
At Stella Mattina, our maternal fetal medicine Dallas team provides compassionate, advanced care focused on achieving the healthiest possible outcome for you and your baby.
Our specialists are experienced in managing high-risk pregnancy, coordinating maternal medical conditions in pregnancy care, and guiding you through advanced imaging and genetic screening.
Your OBGYN and other providers work collaboratively to ensure you have seamless communication and thoughtful planning.
If you have pregnancy risk factors, have received a maternal fetal medicine referral, or simply want clarity about specialized pregnancy care, Stella Mattina is here to help.
We offer same-day appointments and accept most insurance.
Schedule a consultation today with a maternal fetal medicine specialist in Dallas at a location of your choice.

Dr. Joshua Weiss
Dr. Joshua Weiss attended The University of Texas in Austin and The University of Texas Southwestern Medical School in Dallas. Upon completion of his OBGYN residency at Methodist Hospital of Dallas, he moved to New York City where he performed his maternal-fetal medicine fellowship at Columbia University. He is board certified in both obstetrics & gynecology and maternal-fetal medicine. He began the practice of maternal-fetal medicine in Dallas in 2003. In 2006, he opened his current office, Joshua L. Weiss, M.D. Associated.

Diabetes Before or During Pregnancy
Pregnancy-Related Complications That Lead to Referral to a Maternal Fetal Medicine Specialist
Genetic Concerns That Need Advanced Screening from a High-Risk Pregnancy Doctor
Advanced Maternal Age and Pregnancy: Preventive Care from Your MFM
How a Maternal Fetal Medicine Specialist Works With Your Care Team