Lower back pain may have the following causes: first, herpes zoster, in the early stage of herpes zoster can appear in the lower lungs hidden pain or stabbing pain, then after 1-2 weeks of incubation period can see clusters of herpes, then early diagnosis and treatment to the dermatology department; second, intercostal neuralgia, patients with intercostal neuralgia can appear in the lower lungs intercostal nerve pain, often hidden pain, stabbing pain or Third, rib diseases, when there are tumors or metastases in the ribs, there can also be pain in the lower back, then CT and ECT examinations of the ribs should be performed for diagnosis; fourth, lung diseases, when inflammation or tumors in the lungs appear, there can be symptoms of pain in the lower back Fourth, lung diseases, when inflammation or tumor of the lung occurs, there can be symptoms of lower back pain.