WHAT DOES XLH MEAN?
stands for “X-linked,” which means the condition is passed down through the
X chromosome.
stands for “hypophosphatemia,”
which means
that the levels of phosphorus in the blood are too
low.
Karabeth and her mother, JoBeth
Karabeth is living with XLH
WHERE TO GET STARTED
No matter where you are in your XLH journey, you’ll find here
the information and guidance you need to take the next step
with confidence.
TALK WITH SOMEONE WHO UNDERSTANDS XLH
Whether you have XLH or wish to hear more about XLH, you're not alone.
Connect with an XLH Guide—a real person who can help support you and your family with:
One-on-one conversations
at a time that works for you
Answers to your everyday
XLH questions
Resources for where you
are in your XLH journey
All at no cost to you, completely confidential and secure, with no obligations.
Karabeth and Alice
Both living with XLH
Could your family members have XLH?
Because XLH is a genetic condition,
other people in your family may have it,
too. Learn how XLH inheritance works,
how to map it in your family, and how to
start conversations about getting care.
Alice and her father, Jason
Both living with XLH
RESOURCES & COMMUNITY
COMM-US-RDS-0997 August 2026