Legg-Calvé-Perthes (LCP) disease refers to the osteonecrosis of the femoral head of childhood with unknown etiology [1]. Magnetic resonance (MR) imaging is a technique that can be used for early diagnosing, staging and evaluating the treatment. MR imaging findings may display variations according to the different stages of the disease. In this review, the role of MR imaging along with the findings on images in the evaluation of LCP disease will be displayed.