404 error image based on National Fragile X Foundation logo design.

Oops! You’ve found our 404 error page!

We don’t recognize the web address you’re looking for, which might be an old link to current content, a small typo, or Gremlins. Most likely Gremlins.

Arrow pointing down to an FXS fact Hand-drawn arrow pointing at rotating FXS fact

But never fear—we probably have what you’re looking for. You can use the search box below or check out this fact to learn something new about Fragile X.

Fragile X mutations can be classified as