31/01/2026
Most people have never heard of X‑linked hypophosphatemia (XLH)… but for those living with it, XLH shapes every single day.
XLH is a genetic, lifelong rare disease that affects the way the body handles phosphate — a mineral essential for strong bones, teeth, and muscles.
When phosphate levels stay low, the body can’t keep up. That means:
• bone pain and fractures
• bowed legs or skeletal differences
• dental abscesses
• fatigue that hits like a wall
• mobility challenges
• symptoms that continue into adulthood
XLH isn’t caused by diet. It isn’t something you “grow out of.”
It’s a hereditary condition caused by mutations in the PHEX gene, and it affects children and adults across Australia.
This Rare Disease Day (28 February 2026), we’re raising awareness so more people get diagnosed earlier, treated sooner, and supported better.
💬 Have you or your family been impacted by XLH? Share your XLH story below — your voice helps others feel seen.