Thigh root popping may be a normal phenomenon, inflammatory lesions, soft tissue injury and other conditions. 1. Normal phenomenon: there are cartilage, synovium, ligaments and other tissues in the hip joint, when the tissues are rubbed together, a ringing sound can appear, and there is no other abnormal sensation when it is physiological ringing, which is a normal phenomenon. 2. Inflammatory lesions: when the hip joint has rheumatoid arthritis, osteoarthritis and other inflammatory lesions, inflammatory exudation can occur in the local tissues, leading to the phenomenon of thigh root popping. 3. Soft tissue injury: due to long-term chronic strain on the hip, the hip muscles and joint capsule are damaged, which can lead to the symptoms of thigh root popping, and when it is serious, it can be accompanied by pain and activity limitation. Thigh root popping can be caused by a variety of reasons, it is recommended to go to the hospital in a timely manner, improve the relevant examination, clear diagnosis and treatment.