Genetic Carrier Screening

Coverage for genetic testing varies by insurance plan, laboratory, diagnosis, and medical history. Some plans cover testing in full. Others apply a deductible, coinsurance, or exclusion.

Ask the genetics laboratory for an estimated patient cost before testing. Some laboratories offer self-pay rates or financial assistance.

If your results lead you to IVF or PGT, the associated treatment and laboratory charges are usually separate. Illume’s Finance Hub helps explain fertility benefits, cost estimates, and questions to ask your insurer.

Genetic carrier screening is usually optional and not required for fertility treatment.

For gestational surrogacy arrangements, ASRM recommends appropriate genetic evaluation for each person contributing eggs or sperm, including the people whose eggs and sperm created a donated embryo. The gestational surrogate does not contribute genetic material and does not usually need carrier screening for that pregnancy. She completes a separate medical screening process.

Carrier screening can be performed before conception, during fertility treatment planning, or early in pregnancy. Earlier testing gives you more time to review results, test the other genetic contributor if needed, and consider your reproductive options.

You do not need a known family history or infertility to consider screening. Many carriers have no symptoms or affected relatives. Screening estimates whether you carry variants for certain inherited conditions. It does not assess overall fertility or detect every genetic condition.

• Carrier screening tests DNA from a genetic contributor or donor.
• Preimplantation genetic testing, or PGT, examines a small sample of cells from the outer layer of an embryo created through IVF.
• Prenatal screening estimates the chance of certain conditions in an ongoing pregnancy. Prenatal diagnostic testing checks more directly for specific conditions during pregnancy.

Carrier screening can identify a reproductive risk that leads to a larger discussion about PGT-M or prenatal testing. A positive carrier-screening result does not mean that IVF or embryo testing is automatically required.

A carrier result means the laboratory found a reportable variant associated with an inherited condition. For most autosomal recessive conditions, being a carrier does not mean you have the condition. It does not determine whether a future child will inherit the variant or develop the condition.

For autosomal recessive conditions, reproductive risk depends mainly on the other genetic contributor’s result. X-linked findings follow different inheritance patterns. Some carrier findings can affect the health of the person tested, so each positive result deserves careful review.

At Illume Fertility, your genetic counselor will review your full medical history, family history, donor information (if applicable), any prior pregnancies, and relevant lab reports.

You will discuss the benefits and limitations of genetic carrier screening or preimplantation genetic testing (PGT), reproductive risks, partner or donor testing, and possible next steps.

Illume's in-house genetic counselors offer non-directive guidance, providing you with clear medical information without pressure or judgment.

Meet our genetic counseling team:

• James Speer, MS, LCGC
• Anthony Porto, MS, LCGC

If both the egg and sperm provider carry disease-causing variants in the same autosomal recessive gene, each pregnancy usually has a 25% chance of being affected. Each pregnancy has a 50% chance of producing an unaffected carrier.

Risks differ for X-linked conditions and other inheritance patterns. Your genetic counselor can explain the condition, expected severity, test limits, and reproductive choices.

Options may include conception without embryo testing, prenatal diagnosis, donor conception, or IVF with PGT-M.

A negative result means the laboratory did not find a reportable variant within the test’s scope. This lowers your chance of being a carrier for the conditions tested.

It does not reduce the chance to zero. The panel may exclude some genes, and its methods may not detect every disease-causing variant. This remaining chance is called residual risk.

ACOG explains the limits of negative carrier screening results.

Carrier screening cannot diagnose most causes of infertility.

A diagnostic evaluation, often called fertility testing, uses separate tests to assess ovarian reserve, ovulation patterns, the uterus and fallopian tubes, sperm quality, and other health factors.

Some genetic findings can affect fertility or pregnancy. Targeted testing can help when family history, pregnancy tissue testing, or recurrent loss raises a defined concern. A genetic counselor can explain which testing applies to your situation.

See our fertility testing overview and ASRM's recurrent pregnancy loss guidance for more information.

Egg and sperm donors commonly complete carrier screening, but requirements and panels vary across agencies, banks, and laboratories. Two reports marked “negative” may not cover the same genes or variant types.

If the other genetic contributor is a carrier, your genetic counselor should compare the full reports. This review confirms whether the donor received suitable testing for the same condition.

Learn more about donor conception at Illume.