Many people usually have the symptom of low back pain somehow, especially sometimes after a long time bending up, the pain will be more obvious. Here, to give you a detailed analysis of the reasons for the appearance of low back pain. 1, caused by spinal lesions. Such as rheumatoid spondylitis, osteophytes, tuberculous spondylitis, spinal trauma and disc prolapse, etc. 2. Caused by disorders of the spinal bones and joints and their surrounding soft tissues. Such as lumbar muscle strain, myofibrosis, and local injury caused by contusion, sprain, hemorrhage, edema, adhesions and muscle spasm, etc. 3. Caused by spinal cord and spinal nerve disorders. Such as spinal cord compression, acute myelitis, radiculitis, spinal cord tumors, etc. caused by low back pain. 4. Caused by mental factors. If a patient with hysteria may also complain of lumbar disease, but there are no objective signs, or the objective examination and subjective narrative cannot be explained by knowledge of physiological anatomy and pathology, this kind of lumbar pain is often a manifestation of hysteria. 5. Caused by internal organ disorders. Such as nephritis, urinary tract infection, urinary stones, cholecystitis, gallbladder stones, pancreatitis, gastric and duodenal bulb ulcers, prostatitis, endometritis, adnexitis and pelvic inflammatory disease, etc. Tumors can also cause lumbosacral pain, and female patients are often accompanied by corresponding gynecological symptoms. So, there can be a variety of reasons that can lead to back pain, but the above five points for you to sort out, is the most common cause of back pain, if you have back pain, the first thing to check, what is caused by, and then the treatment.