Two thigh root pain symptoms, the following common causes: first, hip joint strain: prolonged excessive weight bearing will lead to hip joint strain, the synovial membrane in the joint will appear transient edema, the patient will have thigh root pain symptoms, and accompanied by hip joint activity restrictions and weight-bearing difficulties, the symptoms will gradually ease after rest. Second, bilateral hip osteoarthritis: mainly occurs in elderly patients, related to degenerative changes, the patient’s articular surface cartilage degeneration leads to uneven joint surface, joint friction will increase when walking with weight, will produce pain symptoms, pain symptoms will naturally ease after rest. As the disease continues to progress, even at rest, the patient will show symptoms of bilateral thigh pain at the root of the thigh, and the pain will continue to flare up and be difficult to relieve. MRI will reveal cartilage degeneration, subchondral bone cystic degeneration, and even localized osteonecrosis.