The genesis of Leg Length Discrepancy is multifaceted, with various factors contributing to its development. Some individuals are born with inherent disparities, as their limbs naturally possess distinct lengths. In other instances, surgical removal of bone infections may lead to one leg being shorter than the other.

To comprehend the underlying causes of SLS, it is essential to delve into its two distinct manifestations: anatomic and functional. Anatomic SLS manifests when the leg bones genuinely differ in length, while functional SLS occurs when musculoskeletal imbalances, such as muscle tightness or ligamentous issues, create the illusion of one leg being shorter than the other, despite the bones being structurally equal.