Repeat Expansion Analysis is a specialized genetic test   used   to   detect   abnormal   expansions   of repetitive DNA sequences in specific genes. These expansions can disrupt normal gene  function  and gene expression. They are  responsible for several inherited     neurological     disorders     such       as Huntington’s disease, Fragile X syndrome, Myotonic dystrophy, and  Spinocerebellar  ataxia.  Identifying these expansions helps support accurate diagnosis and guide clinical management.