Orchid PGT-WGS: Visualizing Invisible Genetic Risks

Stanford’s next-generation whole-genome preimplantation screening

PublishedOctober 18, 2025

Last UpdatedOctober 18, 2025

Even when chromosomal screening (PGT-A) is normal, some genetic risks—such as those linked to autism or childhood cancers—remain unseen. To address this, researchers from Stanford University developed Orchid PGT-WGS (Whole-Genome Screening). This article explains its principles, clinical use, and key considerations through the lens of Better Freeze’s evidence-based approach.

Introduction — Beyond Chromosomal Testing: One More Step Toward Reassurance

1. What is Orchid PGT-WGS?

2. How it differs from traditional testing

3. How the test works (approx. 2 weeks)

4. Who may consider this test

5. Limitations and cautions

6. Conclusion — Understanding brings reassurance

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