Understanding the genetic basis of developmental trajectories enables earlier and more accurate diagnosis of a wide array of pediatric conditions. Genetic & developmental pediatrics integrates molecular diagnostics with behavioral and physical assessments to uncover causes of developmental delays, intellectual disabilities, and congenital anomalies. Pediatricians collaborate with geneticists, therapists, and psychologists to create individualized care plans addressing physical, cognitive, and psychosocial needs. Chromosomal microarrays, exome sequencing, and next-generation technologies allow clinicians to pinpoint mutations responsible for syndromic and non-syndromic presentations. As gene-environment interactions become clearer, intervention strategies can be personalized to support both medical treatment and developmental milestones. Genetic & developmental pediatrics plays a foundational role in unlocking each child's full potential through precision-driven, multidisciplinary care.