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Discover who else in your family may have XLH

X-linked hypophosphatemia (XLH) is a genetic condition, which means it can run in families. The XLH Family Tree tool can help you see how XLH may be inherited across generations.

  • Build your family tree to see how XLH may have been passed down.

  • See which family members may have XLH or could benefit from learning more.

  • Download a PDF to help guide conversations with your family and your doctor.

Need more details?

Download the XLH Family Inheritance Guide to learn more about how XLH is passed down.

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COMM-US-RDS-1001 August 2026