Chromosomal microarray analysis (CMA) is a genetic test that scans the entire genome for thousands of genetic abnormalities, including deletions and duplications of genetic material that may not be detectable by traditional karyotyping. This highly sensitive technique offers a comprehensive view of an individual's genetic makeup, enabling clinicians to diagnose a wide range of genetic disorders with greater accuracy. By pinpointing specific genetic anomalies, microarray testing provides invaluable insights for personalized medical care, guiding decisions on treatment and management of various conditions.