Leg Length Discrepancy (LLD) refers to a condition where one leg is shorter than the other. This difference can be due to various factors, including genetics, injury, or certain medical conditions. LLD can be classified as either structural, where the bones are of different lengths, or functional, where the legs are the same length but appear different due to issues like muscle tightness or joint problems. Symptoms of LLD may include uneven wear on shoes, difficulty walking, or discomfort in the hips, knees, or back. Treatment options vary based on the severity and cause of the discrepancy and may include physical therapy, shoe inserts, or, in some cases, surgery.