There is currently no cure for Fragile X syndrome, and no treatment reverses the underlying genetic change. Care instead focuses on supporting development, managing symptoms, and helping each person build functional, everyday skills — an approach that works best when started as early as possible.

• Early intervention services. For children under three, coordinated programs targeting speech, motor skills, and social development can meaningfully improve later functioning, and are typically the first step after diagnosis.
• Speech and language therapy. Addresses delayed or unclear speech, which is nearly universal in affected boys and common in affected girls.
• Occupational therapy. Helps with fine motor skills, sensory sensitivities (many children are overwhelmed by noise, light, or touch), and daily living tasks.
• Physical therapy. Addresses low muscle tone and coordination difficulties, particularly in early childhood.
• Behavioral therapy. Structured approaches, often adapted from autism spectrum disorder programs, help with attention, anxiety, transitions, and social interaction.
• Educational support. An individualized education plan tailored to the child’s specific learning profile, with regular review as needs change through school years.
• Medication. No medication treats Fragile X syndrome itself, but medications used for attention difficulties, anxiety, or seizures in the general population are often used to manage those specific symptoms. Because affected individuals can be unusually sensitive to side effects, doctors typically start at low doses and adjust gradually.

Families are often connected with a multidisciplinary team, combining genetics, developmental pediatrics, and therapy services, so that care stays coordinated as the child grows rather than being managed by separate providers in isolation.