The most common causes of lumbar pain are lumbar muscle strain, lumbar intervertebral disc herniation, lumbar dorsal muscular fasciitis, gynecological diseases, urological diseases, etc. If the symptoms persist, it is recommended to consult a doctor in time. 1. Lumbar muscle strain: long-term engagement in heavy physical labor is easy to cause lumbar muscle strain, when the cold stimulation, poor posture, overload, it is easy to induce lumbar pain. 2. Herniated lumbar intervertebral disc: when the structure of each part of the intervertebral disc changes due to trauma, the nucleus pulposus breaks away from the annulus fibrosus, causing pain after the formation of herniated lumbar intervertebral disc. 3. Lumbar dorsal myofasciitis: usually associated with repeated wear and tear and pressure on the lumbar dorsal myofascia, which is a kind of aseptic inflammation, and when inflammation strikes, not only will there be low back pain, but also may be accompanied by local redness and swelling. 4. Gynecological diseases: If the patient is a woman, it may also be gynecological diseases, such as pelvic inflammation, inflammation of the uterus, usually pay attention to the cleanliness of the private parts. 5. Urological diseases: patients who have urinary stones or kidney stones may also be involved in causing back pain. Causes of low back pain is more, may also be related to osteoarthritis, lumbar spondylolisthesis, stress fracture, osteophytes and other diseases, the patient is still painful after resting, it is recommended to go to the hospital in a timely manner to find out the cause of the disease, by the doctor targeted treatment.