Nowadays, the increasing number of patients with low back pain, what causes low back pain, but often let the patients and even doctors confused, the so-called “patients with back pain, doctors headache. After the survey summarized, the most common causes of low back pain are as follows, you first look at their own number: 1, lumbar disc herniation: patients of all ages can appear, but more young people. The general course of the disease is shorter, even acute onset, before the onset of labor, weight bearing, sedentary or lumbar sprain process. In addition to lumbar pain, there are usually radiating pains in the lower limbs, mostly on one side, but also on both sides. In more serious cases, there may be abnormal function of urine and feces. At this point, do not delay the time to consult the doctor, should be timely to the hospital, after the doctor’s detailed questioning, physical examination and make a preliminary judgment, usually recommended to improve some of the necessary imaging tests (such as X-ray, MRI or CT), to be the results of the return, generally can be diagnosed, and informed of the severity of the disease. 2. Lumbar spinal stenosis: The onset of the disease in middle-aged and elderly people, in addition to low back pain, a variety of symptoms are more, including leg pain, leg soreness or coldness, and so on. Generally speaking, the course of the disease is long, and it is chronic and progressive. After walking for a certain distance, the symptoms are felt to be aggravated, and a short rest is needed before continuing to walk, and generally cycling and mountain climbing are not affected. Usually, it is also necessary to improve the relevant imaging examination and exclude vascular related diseases to confirm the diagnosis. 3, lumbar muscle strain, fasciitis: generally due to prolonged sitting and standing, catching a cold, after weight-bearing labor, muscle tension lumbago, not accompanied by other lower limb symptoms. Through rest, physical therapy, topical creams or NSAIDs oral medications for anti-inflammatory pain, the symptoms can be significantly relieved within 3-5 days. 4, lumbar tuberculosis and other infections: most of these diseases have a history of tuberculosis, such as tuberculosis. Typical lumbar tuberculosis in addition to lumbar pain, sometimes there will be symptoms of tuberculosis poisoning, such as night sweats, fatigue, lethargy, afternoon low fever. Imaging examination will also have typical intervertebral space destruction or paraspinal abscess performance. 5. Vertebral tumor: Some patients have a history of malignant tumors, such as lung, prostate, breast tumors, etc., and they will take the initiative to ask for bone metastasis when they have obvious low back pain; however, we also encountered some patients in outpatient clinic who have no history of tumors in the past, that is, they did not pay attention to the early stage of low back pain, and they came to see the doctor after a long time, and after the inspection, they found that it was already bone metastases. In this case, in addition to routine radiographs, it is usually necessary to go for tissue biopsy to explore the nature of the tumor as well as the primary lesion. 6.Vertebral compression fracture: It is common in elderly osteoporosis patients, usually twisting the waist, even pulling the curtains, sneezing can induce severe lumbar pain, limited activities, dare not activities. Do not jump to conclusions and mistake it for a simple lumbar sprain. An experienced orthopedic surgeon can determine whether a vertebral fracture is possible by simply asking for a history and physical examination. There is also a part of the vertebral compression fracture, is caused by pathological fractures (such as tumor damage), which also requires further examination to clarify the diagnosis. 7, pelvic diseases: In addition to orthopedic diseases, there are also some other systemic diseases, such as ureteral and renal disorders, pelvic inflammatory disease and so on. If it is difficult to distinguish by yourself, it is also recommended to go to the hospital as early as possible for examination and elimination. In short, if the symptoms of low back pain, in addition to the diseases listed above, there are many other reasons not mentioned, remember not to jump to conclusions on their own, must go to a regular hospital, a clear diagnosis, treatment, so as not to miss the best time for treatment.