Abnormal rattling at the joint of the thigh and hip bone may be related to bursitis, popping hip, osteoarthritis and so on. 1. Bursitis: There is a bursa in the outer part of the hip joint, where the greater trochanter is located. If the bursa is affected by extrusion, friction, cold and other factors, it will cause inflammation and swelling of the bursa. At this time, when the patient moves the hip joint, the bursa here will be squeezed, which will produce rattling. 2. Snapping hip: because of trauma or long-term chronic strain injury, when the movement of the joint impact can cause localized rattling, partially accompanied by pain and swelling, hip joint activity is limited. Pressing the femoral tuberosity will have obvious pain symptoms, patients will have obvious noise when hip flexion and extension, and the noise disappears when resting. 3. Osteoarthritis of the hip joint: due to the roughness of the joint surface, wear and tear increases. Patients will also have hip joint rattling during activities, accompanied by pain and activity limitation, and patients will have obvious dysfunction. When abnormal rattling occurs at the joint of the leg and hip bone, it is recommended to consult a doctor in time, follow the doctor’s instructions for further examination, and choose a reasonable treatment plan under the doctor’s comprehensive analysis.