children s health issues
Fragile X Syndrome
Diagnosis of Fragile X Syndrome
DNA tests Fragile X syndrome can be detected by DNA tests done after birth. (See also Next-generation sequencing technologies .) The diagnosis of Fragile X syndrome is typically made when the child is school age or an adolescent. It is recommended that boys with autism and intellectual disability be tested for Fragile X syndrome, especially if their mother has relatives who have similar problems. 