The common symptoms are hip pain and limited range of motion, and in more severe cases, thigh pain, but this pain does not extend beyond the knee joint. Therefore, if you have low back pain now, it is not necessarily related to femoral head lesions. It is possible that in addition to the femoral head lesion, there are also lumbar muscle strain, lumbar disc herniation or small joint disorder, lumbar spinal stenosis and other such lesions. If you cannot improve significantly by resting in bed for a period of time, it is recommended to go to the orthopedic department of the hospital and let the doctor check the diagnosis of the disease based on relevant auxiliary examinations, such as CT or MRI of the lumbar spine, in which case there will be a corresponding treatment plan to help relieve the lumbar pain. You should not think that the lumbar pain is related to the femoral head and not actively check and treat it, as this will easily delay the disease.