Genetic screening is one of the most valuable — and most misunderstood — parts of modern reproductive care. For some couples, it’s a routine part of pregnancy planning; for others, it becomes essential after a specific concern arises, whether that’s family history, a previous pregnancy loss, or advanced maternal age. At Samad Hospital’s Genetic Screening department, we help couples understand which tests are relevant to their situation and what the results actually mean.

Why Genetic Screening Matters

Every person carries some genetic variants, most of which have no impact on health. Genetic screening isn’t about finding a “perfect” genetic profile — it’s about identifying specific, well-understood risks that could affect a couple’s chances of having a child with a genetic condition, or that could affect the health of an ongoing pregnancy. This information allows couples and their care team to make informed decisions, whether that means additional monitoring, early intervention, or simply peace of mind.

Preconception Genetic Carrier Screening

For couples planning a pregnancy — including those undergoing IVF — carrier screening checks whether either partner carries a gene for certain inherited genetic conditions. Many serious genetic conditions are “recessive,” meaning a child is only affected if they inherit the gene from both parents. If both partners are found to be carriers of the same condition, this significantly changes the conversation around family planning, and options like preimplantation genetic testing during IVF can be discussed.

This screening is particularly relevant for couples with:

• A family history of a known genetic condition
• A shared ethnic or community background associated with higher carrier rates for specific conditions
• A previous child or pregnancy affected by a genetic condition
• Consanguineous relationships (marriage between close relatives), which increases the likelihood of shared recessive genes

Genetic Screening During Pregnancy

Once pregnancy is established, genetic screening shifts toward assessing the developing baby directly. Options generally fall into two categories:

Non-Invasive Screening These tests assess risk without any procedure that touches the pregnancy directly, and include:

• First-trimester combined screening — blood tests combined with a specific ultrasound measurement (nuchal translucency) to estimate risk for chromosomal conditions
• Non-invasive prenatal testing (NIPT) — analyzes small fragments of fetal DNA present in the mother’s blood, offering higher accuracy than traditional screening for certain chromosomal conditions
• Detailed anomaly scan — a structural ultrasound, typically around 18–22 weeks, that can identify physical markers associated with genetic conditions

These tests estimate risk rather than provide a definitive diagnosis, which is an important distinction — a higher-risk result means further testing is recommended, not that a condition is confirmed.

Diagnostic Testing When screening indicates elevated risk, or when a couple wants a definitive answer, diagnostic testing may be recommended:

• Chorionic villus sampling (CVS) — typically performed between 11–14 weeks
• Amniocentesis — typically performed after 15 weeks

Both procedures provide a definitive genetic diagnosis, unlike screening tests. Our article on amniocentesis and CVS testing explains what these procedures involve, including how they differ and what to expect from each.

Genetic Screening and Recurrent Pregnancy Loss

For couples who’ve experienced recurrent miscarriage, genetic factors are among the most common identifiable causes, and genetic screening — for both the couple and, when possible, the pregnancy tissue itself — is often a key part of the diagnostic process. Our article on understanding recurrent miscarriage covers this connection in more detail, including how genetic findings shape the plan for a future pregnancy.

Genetic Screening in the Context of IVF

For couples undergoing IVF, genetic screening can be integrated directly into the treatment process through preimplantation genetic testing (PGT), which examines embryos for specific genetic conditions or chromosomal abnormalities before transfer. This is particularly relevant for couples with a known carrier status, a history of a genetic condition in the family, or recurrent implantation failure, and is often discussed alongside broader fertility treatment planning.

Understanding Advanced Maternal Age and Genetic Risk

The likelihood of certain chromosomal conditions, such as Down syndrome, increases with maternal age — a factor that becomes especially relevant for the growing number of women conceiving later, including many who’ve undergone fertility treatment. This doesn’t mean genetic screening is only relevant for older mothers, but age is one factor, among several, that shapes which tests are most likely to be recommended.

What Happens After a Screening Result

Receiving genetic screening results — particularly an unexpected or higher-risk result — can understandably bring anxiety. A thorough genetic counseling conversation is an essential part of the process, helping translate statistical risk into practical next steps, whether that’s further diagnostic testing, additional monitoring, or simply context that reduces uncertainty. This kind of support pairs closely with the broader emotional care we discuss in our article on the emotional toll of infertility and pregnancy-related stress.

Making an Informed Decision About Genetic Screening

Genetic screening is not mandatory, and every couple approaches it differently based on personal, cultural, and medical considerations. What matters most is having clear, accurate information about what each test can and can’t tell you, so that the decision to test — or not to test — is genuinely informed.

Whether you’re planning a pregnancy, currently pregnant, or navigating fertility treatment, book a consultation with our Genetic Screening team or call TVM: +91 80788 11101 to discuss which options are relevant to your situation.