Common orthopedic diseases: 1. traumatic diseases such as bone and joint injuries of extremities, pelvic and acetabular fractures, spinal cord injuries, peripheral nerve injuries, etc. Common diseases such as humerus fractures, femur fractures, hand trauma, foot trauma, etc. 2. degenerative diseases of the cervical and lumbar spine, chronic injuries of the locomotor system, such as cervical spondylosis, lumbar disc herniation, lumbar spinal stenosis, tennis elbow, etc. 3. 4. bone tumors, soft tissue tumors, especially tumors of the extremities, etc. Basically, orthopedics includes the above diseases.