Back pain may be caused by the following reasons: first, back fasciitis, when the back of the fascia due to strain, cold and chronic injury, back pain can occur, the pain is heavier in the morning, after a short period of activity can be improved, it is necessary to conduct relevant tests to exclude other diseases for diagnosis. Second, spinal diseases, when the spine has tuberculosis or tumors, can also appear back pain, then the spine should be diagnosed by nuclear magnetic, CT examination. Third, osteoporosis, osteoporotic elderly people can have severe back pain, and if accompanied by compression fractures, the pain can be aggravated, then the relevant vertebral X-ray and MRI should be performed for early diagnosis and treatment. Fourth, lung disease, if there is a tumor in the lung, can also appear serious back pain, then we should conduct a CT examination of the lung for diagnosis.