23andMe Personal Genome Service (PGS) Genetic Health Risk Test for Hereditary Thrombophilia
Overview
The 23andMe Personal Genome Service (PGS) Genetic Health Risk Test for Hereditary Thrombophilia is a direct-to-consumer genetic test designed to report on an individual’s genetic predisposition to developing harmful blood clots. Specifically, it screens for the Factor V Leiden variant in the F5 gene and the Prothrombin G20210A variant in the F2 gene, which are the two most common variants linked to hereditary thrombophilia.
This test is intended for individuals 18 years and older and is most relevant for people of European descent, though these variants are also found in populations with European ancestry, such as African Americans and Hispanics or Latinos. It provides risk estimates for developing a harmful blood clot for the first time but does not diagnose hereditary thrombophilia or any other health conditions. Users are advised to consult with a healthcare professional to discuss their results and overall risk, as lifestyle, environment, and other factors also contribute to the risk of blood clots.
The test is part of 23andMe’s broader Health + Ancestry Service, which offers a range of genetic health risk, carrier status, and wellness reports. Customers provide a saliva sample, which is then analyzed using single nucleotide polymorphism (SNP) genotyping. Results are delivered through a secure online account and can be accessed via a mobile app.
Reviewed by Pouyan Golshani, MD — Interventional Radiologist
Key Features
- Detection of Factor V Leiden variant (F5 gene)
- Detection of Prothrombin G20210A variant (F2 gene)
- Direct-to-consumer saliva sample collection
- Personalized online genetic health risk reports
- Access to ancestry reports and DNA relative finder
- Educational resources for healthcare professionals
- Optional participation in genetic research
Use Cases
- Understanding genetic predisposition to harmful blood clots
- Informing discussions with healthcare professionals about personal health risks
- Assessing genetic risk factors for family planning
- Proactive health management and lifestyle considerations
- Contributing to scientific and medical research
What Physicians Need to Know
When reviewing 23andMe Hereditary Thrombophilia results, remember this is a genetic risk assessment, not a diagnostic test. The report covers only two specific variants (Factor V Leiden and Prothrombin G20210A) and does not encompass all genetic or non-genetic factors contributing to thrombophilia risk. Risk estimates are most relevant for individuals of European descent. Always integrate these results with a comprehensive clinical evaluation, patient history, family history, and consider further clinical testing or genetic counseling as appropriate for definitive diagnosis and management. Do not rely on this test for drug interaction checking or comprehensive differential diagnosis support.
The 23andMe service is direct-to-consumer and does not offer direct integration with Electronic Health Record (EHR) systems. Physicians will typically receive these results if the patient chooses to share their personal report. Manual review and incorporation of the genetic information into the patient's medical record are necessary. There is no automated decision support or audit trail functionality for physicians within this platform.
Details
| Category | Clinical Decision Support & Reference, Lab & Diagnostics |
| Pricing |
$199
|
| Deployment | Cloud-based (for data access and reports), At-home kit (for sample collection) |
| Compliance | |
| BAA Available | No AI-estimated |
| HIPAA Compliant | No AI-estimated |
| FDA Status |
1 AI-estimated The 23andMe Personal Genome Service (PGS) Genetic Health Risk Test for Hereditary Thrombophilia received De Novo authorization (DEN160026) from the FDA on April 6, 2017. This authorization allows 23andMe to market this direct-to-consumer test for reporting on the Factor V Leiden and Prothrombin G20210A variants associated with an increased risk of developing harmful blood clots. |
| Integrations | |
| EHR | Not specified |
| Specialties | Hematology, Laboratory Medicine |
What the Web Says
The 23andMe Personal Genome Service (PGS) Genetic Health Risk Test for Hereditary Thrombophilia screens for two common genetic variants (Factor V Leiden and Prothrombin G20210A) linked to an increased risk of developing harmful blood clots. This test is primarily relevant for individuals of European descent, as the variants are most common and best studied in this population. It's important to note that the test indicates a higher risk but does not provide a definitive diagnosis of hereditary thrombophilia or a person's overall risk of developing blood clots. Healthcare professionals generally recommend further consultation and confirmatory testing for any positive results.
Overall: MixedStrengths
- Identifies two common genetic variants associated with hereditary thrombophilia (Factor V Leiden and Prothrombin G20210A).
- Can provide individuals with information about their genetic predisposition to blood clots, which they might not otherwise know.
- The test is FDA-authorized for these specific genetic health risk reports, indicating a level of accuracy and reliability for the tested variants.
- Results can prompt discussions with healthcare professionals about potential risks and further screening.
- The process is generally considered easy to use with a home-based saliva kit.
- Offers detailed, yet easy-to-understand, reports.
Limitations
- Only tests for two specific genetic variants, not all possible variants linked to hereditary thrombophilia or other genes that may increase risk.
- Risk estimates are most relevant for people of European descent and may not be as well-known or applicable to other ethnicities.
- Does not provide a diagnosis of hereditary thrombophilia or predict if a person will definitely develop blood clots.
- Some healthcare professionals may be unfamiliar with 23andMe results and may recommend confirmatory blood tests.
- Negative results do not rule out the presence of other genetic variants or non-genetic factors that could contribute to blood clot risk.
- Concerns exist regarding data privacy and the potential for genetic information to be used by insurance companies, although GINA protects against discrimination in health insurance.
Based on reviews from: 23andMe for Healthcare Professionals, accessdata.fda.gov, Genomelink, Reddit, Trustpilot, YouTube, 23andMe United Kingdom, Blue Cross & Blue Shield of Mississippi, DNA tests, Genealogy Explained
Last updated: 2026-07-17
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