Does backache cause knee pain?

Low back pain can cause knee pain, which is often caused by high lumbar disc herniation or lumbar spinal stenosis at high levels, causing knee pain, often lumbar disc herniation at 2/3 or 3/4 levels, or spinal stenosis causing compression of nerve roots, showing knee pain. Most of the nerve pain in the front of the thigh and knee pain exist at the same time. At this time, it is necessary to check the MRI and CT of the lumbar spine early, check the X-ray and MRI of the knee joint, and rule out the disease of the knee joint to diagnose. High disc herniation or spinal stenosis is relatively rare in clinical practice, but its symptoms are often confused with knee joint diseases. Therefore, early differential diagnosis should be paid attention to to prevent misdiagnosis.