Low back pain may be caused by physiological factors such as getting cold, or pathological factors such as osteophytes and lumbar disc herniation. 1. Physiological factors: such as cold, overload and other causes of slow blood circulation, or muscle tension, resulting in local spasm, resulting in lumbar pain symptoms. It is a normal physiological phenomenon and can disappear by itself after proper rest or warmth. 2. Osteomalacia: lumbar spine osteophytes are caused by the stimulation of the surrounding muscles and fascia by the bones, leading to lumbar pain symptoms. 3. Lumbar disc herniation: Lumbar disc herniation is that the nucleus pulposus protrudes and compresses the nerve root after the annulus fibrosus breaks, causing the symptoms of lumbar pain. In addition to the above reasons, urinary tract infection, female adnexitis and other reasons can also cause lumbar pain symptoms, therefore, when the patient has lumbar pain, it should be promptly admitted to the hospital for consultation, to clarify the cause of the disease, and to carry out targeted treatment, so as to avoid further aggravation of the condition.