Long-term back pain is considered to be caused by kidney diseases, lumbar muscle strain, spinal disorders, etc. You should consult a doctor in time to find out the cause as soon as possible to avoid delaying your condition and affecting your work and life. Long-term back pain, if accompanied by lumbar pain, is considered to be kidney diseases such as kidney stones, kidney tumors, nephritis, etc. It is often due to the swelling of the kidneys that compresses the surrounding tissues and involves the back pain. If it occurs after prolonged bending, overwork or strenuous exercise, it is considered to be a strain of the lumbar muscles, and the patient should pay attention to good preparatory activities before exercise and avoid prolonged bending. It may also be caused by lumbar vertebrae fracture, spinal tuberculosis, spinal tumor, usually need to go to the hospital to do CT, MRI, blood test and other tests to clarify the specific cause. Long-term back pain may also have other causes, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.