1, the causes of low back pain Low back pain like abdominal pain is a common symptom, almost 80% of adults have experienced low back pain in their lifetime. Low back pain seems to be very simple, some say it is a herniated disc, some say it is sciatica, some say it is lumbar strain, and so on. In fact, the causes of low back pain are complex, and low back pain may be a manifestation of many diseases. Generally speaking, low back pain can be broadly categorized into the following sources according to the anatomical parts of its possible sources: intervertebral discs, vertebrae, nerve roots, small joints of the lumbar spine, paravertebral muscles, ligaments of the spine, sacroiliac joints, etc. In addition, lesions in the abdominal and pelvic organs (retroperitoneal inflammation, pelvic inflammation, tumors, abdominal aortic aneurysms, etc.) may also be the cause of low back pain. Although the causes of low back pain are complex, thankfully most of them are benign, some can heal on their own, and some can be relieved quickly with rest or simple treatment. Only a small percentage of low back pain is more serious and should be treated as soon as possible, as delayed treatment may have a poor prognosis. 2, countermeasures for low back pain Bed rest + pain medication is the main countermeasure for early acute low back pain. First is bed rest. At present, most people feel that only medication and injection are the real treatment, but in fact, rest is also an aspect of treatment. Secondly, you can take oral anti-inflammatory and analgesic drugs (such as ibuprofen, celecoxib, etc.) to promote the inflammation to subside, relieve muscle spasm and improve pain. Many patients are afraid of taking pain medication, always thinking that pain relief is not a cure, pain medication is addictive and other kinds of misconceptions, which also reflects the lack of medical knowledge of the general public. At present, the commonly used pain medications are mainly non-steroidal drugs, whose main side effect is peptic ulcer, without addiction and without addiction dependence. The treatment of common back pain is mainly to improve pain, not to treat imaging changes. To a certain extent, pain relief is the purpose of treatment, and the purpose is achieved when the pain is relieved after treatment. Sometimes some patients whose symptoms have disappeared ask for a review of CT and MRI, and the results are often the same as described before treatment, and I often tell patients that such a review is meaningless. If the pain does not improve after the above 2-3 days of treatment or is accompanied by the following conditions, it is recommended to visit the hospital as soon as possible, and X-ray and MRI are usually required. 1.Lower back pain with fever or even chills (spinal infection, tuberculosis, etc.) 2.Low back pain with significant weight loss, or previous history of tumor (primary or metastatic tumor of the spine). 3.Lower back pain with weakness and pain in the lower limbs (disc herniation, spinal stenosis, lumbar spondylolisthesis, etc.). 4.Lower back pain with weakness and incontinence of urine and stool (cauda equina injury). 5.Lower back pain with severe persistent abdominal pain (abdominal aortic aneurysm). 6.Severe post-traumatic low back pain (fracture) . 7.Older patients with severe osteoporosis (pathological fracture).