Most cases of soreness in the right hip attached to the right leg are likely to be caused by a herniated disc in the lumbar spine. A herniated disc in the lumbar spine is a herniated disc caused by various reasons. After the disc is herniated, it will compress the nerve roots, which will produce abnormal discharge of the nerve roots, and the area under the innervation of the nerve roots will experience soreness and swelling. The soreness and pain in the right hip attached to the right leg is mainly caused by the compression of the nerve. Localized lesions in the right buttock, such as pear-shaped muscle syndrome, can cause spasm of the pear-shaped muscle, and the sciatic nerve passes through the pear-shaped muscle, so the sciatic nerve will be compressed, which will also produce the soreness of the right buttock attached to the right leg. Long time in one position, long time strenuous exercise, long time walking may cause the right hip and right leg muscles to contract repeatedly, local congestion and edema, forming sterile inflammation, which may also lead to soreness in the right hip attached to the right leg.