Does everyone with Fragile X syndrome have physical features?

Females with an FMR1 full mutation will often have a milder presentation of the physical features. Males will not have all of the features of FXS, and some features, such as a long face and macroorchidism, are more common after puberty. 

For more information:

• Fragile X Syndrome  
• Fragile X Info Series: Fragile X Syndrome An Overview for Families and Providers  
• NFXF Webinar Series: Fragile X Syndrome