Legg-Calvé-Perthes disease is a childhood condition that affects the hip joint. It occurs when the blood supply to the femoral head, the ball part of the hip joint, is temporarily disrupted. This leads to the death of bone tissue, causing pain, limping, and reduced mobility in affected children, typically between the ages of 4 and 10. The exact cause of Legg-Calvé-Perthes disease is not fully understood, but it may involve genetic and environmental factors. Diagnosis is usually made through physical examinations and imaging tests like X-rays or MRIs. Treatment often includes rest, physical therapy, and sometimes surgery to restore normal hip function.