Should You Get Prenatal Genetic Counseling? Everything You Need to Know

Prenatal genetic counselling helps expecting parents understand :

their risk of inherited conditions, interpret genetic test results, and make informed decisions about pregnancy care.

Pregnancy is a time filled with excitement, hope, and important decisions.

Along with routine antenatal visits and ultrasound scans, some parents may also be referred for prenatal genetic counselling.

For many families, this referral can feel unexpected and even frightening.

One of the first questions people often ask is, “Does this mean something is wrong with my baby?”

The answer is not necessarily.

In many cases, prenatal genetic counselling is simply an opportunity to understand :

your family’s medical history, discuss available genetic testing options, and receive accurate, evidence-based information before making decisions.

It is designed to help expecting parents understand risks, benefits, limitations, and possible outcomes of different prenatal tests without pressure or judgement.

As a women’s health physiotherapist,

I often meet expectant mothers who have been referred for additional prenatal investigations following an ultrasound finding, carrier screening result, or family history of an inherited condition.

While physiotherapists do not provide genetic counselling, we are an important part of the multidisciplinary maternity team.

We help women manage pregnancy-related discomfort, maintain safe physical activity, reduce stress, and support emotional wellbeing throughout what can sometimes be an uncertain journey.

Prenatal genetic counselling has become increasingly important as advances in medical genetics have expanded the number of screening and diagnostic tests available during pregnancy.

Whether discussing;

• carrier screening,
• Non-Invasive Prenatal Testing (NIPT),
• Chromosomal Microarray Analysis (CMA), or
• Whole Exome Sequencing (WES),

genetic counselling helps families understand what each test can and cannot tell them before deciding whether testing is appropriate.

Modern genetic counselling is centred on education, informed decision-making, and emotional support, rather than telling families what they should do.

This patient-centred approach has been recognised internationally as the foundation of professional genetic counselling practice. (Resta et al. 2006).

The purpose of this article is to explain:

what prenatal genetic counselling involves, when it may be recommended, what happens during an appointment, and how it can help you make informed choices throughout pregnancy.

At a Glance

Feature	Prenatal Genetic Counselling
Purpose	Explain genetic risks and available testing options
Who Provides It?	Certified Genetic Counsellor or Clinical Geneticist
When Is It Recommended?	Before or during pregnancy when genetic risk factors are identified
Includes Genetic Testing?	Not necessarily. Counselling may occur with or without testing.
Decision Making	Shared, informed, and patient-centred
Mandatory?	No. Participation and testing are voluntary.
Benefits	Education, risk assessment, emotional support, informed choices

Comparison of Common Prenatal Genetic Tests

Test	Screening or Diagnostic	When Used	Purpose
Carrier Screening	Screening	Before or during pregnancy	Identifies whether parents carry inherited genetic conditions
NIPT	Screening	From around 10 weeks	Estimates the chance of common chromosomal conditions
CVS	Diagnostic	Around 10–13 weeks	Collects placental tissue for genetic testing
Amniocentesis	Diagnostic	Usually after 15 weeks	Collects amniotic fluid for diagnostic testing
Chromosomal Microarray Analysis (CMA)	Diagnostic	When indicated	Detects chromosomal deletions and duplications
Whole Exome Sequencing (WES)	Diagnostic	Selected pregnancies	Identifies variants in protein-coding genes linked to rare genetic disorders

What Is Prenatal Genetic Counselling?

Prenatal genetic counselling is a conversation between expecting parents and a healthcare professional trained in medical genetics.

The goal is to help families understand whether there may be an increased chance of an inherited or genetic condition affecting the pregnancy and to discuss the options available for further evaluation.

Importantly, genetic counselling is not simply about recommending tests.

Instead, it focuses on helping parents understand:

• their individual level of genetic risk
• available screening and diagnostic options
• the benefits and limitations of each test
• possible outcomes of testing
• how the results might influence pregnancy care

Every pregnancy is unique.

Some couples attend genetic counselling because of a known family history of an inherited condition, while others are referred after an abnormal ultrasound or prenatal screening result.

In many situations, the appointment simply provides reassurance and helps parents make informed choices based on accurate information rather than fear or misinformation.

One of the defining principles of genetic counselling is that it is non-directive.

This means the counsellor’s role is to provide balanced information, answer questions, and support decision-making without encouraging or discouraging any particular option.

This patient-centered approach has been recognized as a core component of professional genetic counselling practice (Yarborough et al. 1989)

Who Is a Genetic Counsellor?

A genetic counsellor is a healthcare professional with specialised training in medical genetics, communication, and counselling.

Their role extends far beyond explaining laboratory reports.

A genetic counsellor helps families:

• understand inherited conditions
• interpret genetic test results
• estimate the likelihood of certain conditions
• discuss available testing options
• explain complex medical information in simple language
• provide emotional support during difficult decisions
• coordinate care with obstetricians, fetal medicine specialists, and clinical geneticists when appropriate

Rather than making decisions for families, genetic counsellors help parents understand the available evidence so they can choose the option that best aligns with their personal values and circumstances.

When Is Prenatal Genetic Counselling Recommended?

Many people assume genetic counselling is only for high-risk pregnancies.

In reality, there are several situations where it can provide valuable information and reassurance.

A Family History of an Inherited Condition

If either parent has a family history of conditions such as cystic fibrosis, sickle cell disease, muscular dystrophy, or another inherited disorder,

genetic counselling can help estimate the likelihood of the condition affecting the pregnancy and discuss whether carrier screening or further testing may be appropriate.

Carrier Screening Identifies That One or Both Parents Are Carriers

Carrier screening sometimes shows that one or both parents carry a genetic variant associated with an inherited condition.

In these situations, genetic counselling helps explain:

• what the result means
• whether the baby may be affected
• whether partner testing is recommended
• what further testing options are available

The goal is to ensure that couples clearly understand the implications before deciding on the next steps.

An Abnormal Prenatal Screening Result

A higher-risk result from prenatal screening, such as NIPT or first-trimester screening, does not confirm that a baby has a genetic condition.

Genetic counselling helps explain:

• the difference between screening and diagnostic testing
• the likelihood that the result represents a true positive
• whether procedures such as CVS or amniocentesis may be considered
• what information additional testing could provide

Providing balanced counselling before advanced prenatal testing is particularly important because each investigation has different strengths, limitations, and possible outcomes.

Unexpected Findings on an Ultrasound

Sometimes a routine pregnancy scan identifies structural differences involving the baby’s heart, brain, kidneys, limbs, or other organs.

Although these findings do not always indicate a genetic condition, they may prompt referral for genetic counselling to discuss whether further investigations,

such as Chromosomal Microarray Analysis or Whole Exome Sequencing, could help identify an underlying cause.

Research has shown that advanced diagnostic testing can improve the identification of genetic causes in selected pregnancies with fetal structural abnormalities,

highlighting the importance of careful counselling before testing. (Makhamreh et al. 2025)

Previous Pregnancy Affected by a Genetic Condition

Couples who have previously experienced a pregnancy affected by a genetic disorder or chromosomal abnormality are often referred for counselling before or during a future pregnancy.

Reviewing previous results helps estimate recurrence risk and discuss appropriate testing options for subsequent pregnancies.

A Lesser-Known Fact

Many people believe that genetic counselling is only offered after a problem has been identified.

In reality, counselling can take place before pregnancy, during pregnancy, or even after the birth of a child.

Preconception counselling is particularly valuable for couples with a known family history of inherited conditions because;

it allows them to understand their options before conception and make informed reproductive decisions without the added time pressures that can occur during pregnancy.

What Happens During a Prenatal Genetic Counselling Appointment?

Many parents imagine that a genetic counselling appointment is mainly about ordering tests.

In reality, the session is much broader and focuses on helping you understand your situation, explore available options, and make decisions that align with your personal values.

Every appointment is tailored to the individual or couple, but most prenatal genetic counselling sessions follow a structured approach.

Reviewing Your Medical and Pregnancy History

The appointment usually begins with a discussion about your health and current pregnancy.

Your genetic counsellor may ask questions about:

• your age and medical history
• previous pregnancies
• medications taken during pregnancy
• ultrasound findings
• previous genetic test results
• fertility treatments, if applicable

This information helps identify whether additional genetic evaluation may be beneficial.

Discussing Your Family History

Family history is one of the most valuable tools in genetic counselling.

Your counsellor may ask about relatives on both sides of the family, including:

• inherited disorders
• birth defects
• intellectual disabilities
• developmental delays
• recurrent miscarriages
• stillbirths
• early-onset cancers
• unexplained childhood deaths
• known genetic conditions

Even conditions affecting distant relatives can sometimes provide useful clues.

Creating a Pedigree Chart

To organise this information, the genetic counsellor often creates a pedigree, sometimes called a family tree.

Unlike a standard family tree, a pedigree records medical information across multiple generations to identify patterns that may suggest inherited conditions.

A pedigree can help determine whether a condition appears to follow:

• autosomal dominant inheritance
• autosomal recessive inheritance
• X-linked inheritance
• mitochondrial inheritance

Although not every family history points to a genetic disorder, a carefully prepared pedigree often helps guide decisions about further testing.

Explaining Individual Risk

One of the most important parts of the appointment is discussing risk.

Many people hear words such as “high risk” or “low risk” without fully understanding what they mean.

Your genetic counsellor explains:

• your estimated chance of a condition occurring
• how that estimate was calculated
• factors that increase or decrease risk
• what remains uncertain

Importantly, risk estimates are probabilities, not guarantees.

For example, a higher-risk screening result does not necessarily mean that a baby has a genetic condition, just as a lower-risk result does not eliminate every possibility.

Helping families understand probability is a central part of modern genetic counselling because informed decisions depend on understanding both the strengths and limitations of available information.

Discussing Available Genetic Tests

If appropriate, your genetic counsellor may explain one or more prenatal testing options.

These discussions are tailored to your pregnancy and may include the advantages, limitations, and possible outcomes of each investigation.

Common tests include:

Carrier Screening

Carrier screening determines whether prospective parents carry genetic variants associated with inherited disorders such as cystic fibrosis, spinal muscular atrophy, or thalassaemia.

Non-Invasive Prenatal Testing (NIPT)

NIPT is a screening test performed on a maternal blood sample.

It estimates the likelihood of common chromosomal abnormalities but does not provide a definitive diagnosis.

Chorionic Villus Sampling (CVS)

CVS is a diagnostic procedure performed during the first trimester to obtain placental tissue for genetic analysis.

Amniocentesis

Amniocentesis is another diagnostic procedure that collects fetal cells from the amniotic fluid for laboratory testing.

Chromosomal Microarray Analysis (CMA)

CMA identifies tiny chromosomal deletions and duplications that may not be visible using conventional karyotyping.

Research has demonstrated that CMA improves the detection of clinically significant chromosomal abnormalities in selected pregnancies, particularly when fetal structural abnormalities are present (Levy et al. 2024)

Whole Exome Sequencing (WES)

When ultrasound abnormalities remain unexplained after chromosomal investigations, WES may be discussed as an advanced diagnostic option for identifying rare single-gene disorders.

Large prospective studies have shown that prenatal WES can significantly improve diagnostic rates in carefully selected pregnancies with fetal structural abnormalities. (Lord et al. 2019).

Will the Genetic Counsellor Tell Me What to Do?

This is one of the most common concerns among expecting parents.

The answer is no.

Prenatal genetic counselling is based on a non-directive approach.

This means the counsellor provides accurate, balanced, and evidence-based information while respecting your personal beliefs, cultural background, family circumstances, and pregnancy goals.

Rather than telling you which option to choose, they help you understand:

• the available choices
• possible benefits
• possible limitations
• potential outcomes
• areas of uncertainty

The final decision always remains yours.

Benefits of Prenatal Genetic Counselling

Prenatal genetic counselling offers far more than access to genetic testing.

For many families, it provides clarity during an emotionally challenging period.

Better Understanding of Genetic Risk

Many inherited conditions are unfamiliar to expecting parents.

Genetic counselling translates complex medical information into language that is easier to understand, helping families make informed choices.

More Informed Decision-Making

Understanding the purpose, benefits, and limitations of different prenatal tests allows parents to decide whether further investigations are appropriate for their individual circumstances.

Emotional Support

Waiting for test results can be stressful.

Genetic counsellors help parents process uncertainty, answer difficult questions, and provide emotional support throughout the decision-making process.

Improved Pregnancy Planning

When a genetic diagnosis is confirmed, families and healthcare professionals can work together to:

• coordinate specialist care
• prepare for delivery
• arrange neonatal services
• discuss future reproductive planning

Common Myths About Prenatal Genetic Counselling

Misunderstandings often prevent families from seeking genetic counselling.

Let’s look at some of the most common myths.

Myth 1: Genetic Counselling Means Something Is Wrong with My Baby

In reality, many couples attend counselling simply because of family history, maternal age, or a desire to better understand available testing options.

Myth 2: I Will Be Pressured to Have Genetic Testing

Genetic counselling is voluntary.

Testing is also voluntary.

The purpose is to provide information, not persuade you to undergo investigations.

Myth 3: Only Older Mothers Need Genetic Counselling

Although maternal age influences the risk of some chromosomal conditions, inherited genetic disorders can affect pregnancies at any age.

Family history, ultrasound findings, and carrier screening results are often more important reasons for referral.

Myth 4: Genetic Counselling Is Only Useful During Pregnancy

Genetic counselling may be helpful:

• before pregnancy
• during pregnancy
• after delivery
• before future pregnancies

The timing depends on your individual circumstances.

Real-Life Clinical Scenarios

Scenario 1: Planning a Pregnancy

A couple has a family history of thalassaemia.

They meet with a genetic counsellor before trying to conceive to understand carrier screening options and the likelihood of passing the condition to their future child.

Scenario 2: Positive Carrier Screening

Carrier screening shows that both parents carry the same inherited condition.

The genetic counsellor explains recurrence risk, available prenatal testing options, and reproductive choices without directing the couple toward any specific decision.

Scenario 3: Unexpected Ultrasound Finding

A routine anatomy scan identifies a congenital heart defect.

The genetic counsellor explains the possible causes, discusses additional testing options, and prepares the family for potential outcomes while working closely with the obstetric and fetal medicine teams.

A Lesser-Known Fact

Many people are surprised to learn that genetic counselling often continues after test results are available.

Receiving a result is not the end of the process.

Follow-up appointments help families:

• understand the findings
• discuss future implications
• arrange specialist referrals
• plan future pregnancies if necessary

Ongoing counselling ensures that families continue to receive support as new information becomes available.

Are There Any Limitations to Prenatal Genetic Counselling?

Prenatal genetic counselling is an invaluable part of modern maternity care, but it is important to understand that it has limitations.

While it helps families make informed decisions, it cannot eliminate uncertainty or predict every possible outcome.

Genetic Counselling Cannot Prevent Genetic Conditions

One of the most common misconceptions is that genetic counselling prevents inherited disorders.

In reality, genetic counselling helps identify potential risks, explains available testing options, and supports informed decision-making.

It does not change a person’s genes or prevent a genetic condition from occurring.

Not Every Condition Can Be Diagnosed

Although genetic testing has advanced significantly, some conditions remain difficult to diagnose before birth.

This may occur because:

• the responsible gene has not yet been discovered
• current technology cannot detect the genetic change
• the condition has non-genetic causes
• ultrasound findings are too subtle or develop later in pregnancy

Even the most advanced tests, including Whole Exome Sequencing, cannot detect every genetic disorder.

Some Results May Remain Uncertain

Occasionally, genetic testing identifies findings that cannot be fully interpreted.

For example, a Variant of Uncertain Significance (VUS) means there is not enough scientific evidence to determine whether a particular genetic variant is harmless or disease-causing.

Receiving an uncertain result can be emotionally challenging,

which is why follow-up counselling is often recommended to help families understand what the finding means and what further steps, if any, may be appropriate.

Ethical Considerations in Prenatal Genetic Counselling

Modern prenatal genetics provides remarkable opportunities, but it also raises important ethical questions.

One of the primary roles of a genetic counsellor is to help families navigate these issues with balanced, evidence-based information.

Respecting Personal Values

Every family has different beliefs, cultural backgrounds, and personal circumstances.

Some parents want as much information as possible during pregnancy, while others may prefer not to undergo genetic testing.

Genetic counselling respects these individual preferences.

Rather than encouraging a particular decision, the counsellor supports families in making choices that align with their own values.

This non-directive approach remains a defining principle of professional genetic counselling practice (Kristoffersson et al. 2024)

Understanding the Limits of Testing

Every prenatal genetic test has strengths and limitations.

Part of the counselling process involves discussing:

• what a test can detect
• what it cannot detect
• possible false-positive or false-negative results (for screening tests)
• uncertain findings
• the possibility that no clear diagnosis will be identified

Understanding these limitations helps prevent unrealistic expectations and supports informed consent.

Privacy and Confidentiality

Genetic information is personal.

Your healthcare team treats genetic test results with the same level of confidentiality as other medical records.

The counsellor may also discuss whether certain findings could have implications for other family members and how this information might be shared appropriately.

The Physiotherapist’s Perspective

Being referred for prenatal genetic counselling can bring a wide range of emotions.

Many women describe feeling worried, overwhelmed, or uncertain while waiting for appointments or test results.

Although physiotherapists do not provide genetic counselling, we are committed to supporting the physical and emotional wellbeing of women throughout pregnancy.

Staying Active Safely

Unless your obstetrician advises otherwise, continuing appropriate physical activity during pregnancy can provide important benefits.

Individualised exercise programmes may help:

• reduce pregnancy-related back pain
• improve posture
• maintain strength and endurance
• reduce fatigue
• support emotional wellbeing

Managing Stress and Anxiety

Periods of uncertainty often increase muscle tension and emotional stress.

Simple techniques may help you feel more in control, including:

• diaphragmatic breathing
• pregnancy-safe stretching
• gentle walking
• relaxation exercises
• mindfulness practices
• maintaining regular sleep routines

These approaches do not change genetic outcomes, but they can make the waiting period more manageable and support overall maternal health.

Preparing for Birth

Whether genetic testing identifies a specific condition or not, preparing your body for labour remains important.

A women’s health physiotherapist can provide guidance on:

• pelvic floor muscle training
• posture and body mechanics
• movement strategies during labour
• managing pelvic girdle pain
• postpartum recovery planning

Supporting your physical health throughout pregnancy can improve confidence and help you feel better prepared for childbirth.

Questions to Ask Your Genetic Counsellor

Preparing questions before your appointment can help you make the most of the discussion.

Consider asking:

• Why have I been referred for prenatal genetic counselling?
• Based on my history, what conditions are you concerned about?
• What genetic tests are available, and which are relevant to my pregnancy?
• What are the benefits and limitations of each test?
• What happens if my results are positive, negative, or uncertain?
• Will my partner also need genetic testing?
• How long will the results take?
• Could these results affect future pregnancies?
• Will additional specialists be involved in my care?
• Where can I find reliable information after today’s appointment?

Writing these questions down beforehand can help ensure you leave the consultation with a clear understanding of your options.

Conclusion

Prenatal genetic counselling is an important part of modern maternity care that empowers expecting parents with accurate information, compassionate support, and the confidence to make informed decisions.

Whether counselling is recommended because of a family history, carrier screening results, an abnormal ultrasound,

or simply to explore available testing options, its purpose is to provide clarity rather than create fear.

By understanding your individual risks, the benefits and limitations of genetic testing, and the choices available,

you can work closely with your healthcare team to make decisions that are right for you and your family.

Combined with multidisciplinary support, including obstetric care, genetic counselling, and physiotherapy when appropriate,

this approach promotes a more informed, confident, and well-supported pregnancy journey.

Stay tuned with us for more health related topics.

Follow us on LinkedIn and Instagram for more.

Medical Disclaimer!

This article has been reviewed and written under the guidance of our Head Physiotherapist, Dr. Kruti Raj (PT, MUHS,CPT,CMPT). The information shared is intended for educational purposes only and should not be considered a substitute for personalized medical advice, diagnosis, or treatment.

Please consult us or any other qualified healthcare professional before beginning any exercise program, especially if you are experiencing pain, recovering from injury, or managing a medical condition.