Back and leg pain has been a major problem for many people. It has been reported that more than 80% of the population has experienced low back and leg pain several times during their lifetime, especially in the elderly, the incidence is higher. Some manifest as low back pain, some as leg pain, and some have both low back pain and leg pain; others manifest as numbness, weakness, and stiffness in the lower limbs. These symptoms are very common, do you recognize and treat these problems correctly? First, for patients who only have low back pain and no leg pain, do you know anything about the performance characteristics of your low back pain? When you appear which low back pain situation, you can not ignore your condition, but need to further to the regular hospital for diagnosis and treatment? First of all, you need to understand your pain characteristics: 1, if the back pain is related to activity, rest can not be relieved, or even aggravated; or night pain is obvious, affecting your sleep; then you can not ignore your condition, because the above situation may indicate that you suffer from primary or secondary tumors of the spine, or serious degenerative spinal disorders, you must go to the regular medical institutions for treatment. 2. If your back pain does not affect your sleep, but only occurs during or after activity and is relieved after rest, you may have lumbar muscle and soft tissue disorders (lumbar strain, myofasciitis, lumbar 3rd transverse process syndrome, etc.), lumbar disc degeneration, lumbar instability, lumbar spine slippage (isthmic fracture or degeneration), lumbar degenerative scoliosis, osteoporosis, infection-like disorders (spinal tuberculosis, spondylolisthesis, etc.). osteomyelitis, etc.). Most of the degenerative lumbar spine disorders can be relieved by conservative treatment, and only when the pain seriously affects your daily life, surgery is needed; while for osteoporosis, spinal tuberculosis, lumbar spondylolisthesis, and lumbar instability, you need to go to the hospital for a clear diagnosis and then develop a corresponding medical or surgical treatment plan. 3, if your back pain, performance and weather changes related to wet weather will lead to increased pain, heavy symptoms in the morning, symptoms after activity has relief, heavy symptoms in the morning, light symptoms in the afternoon. It is possible that you have rheumatoid immune disorders, including compulsory spondylitis (usually in young or middle-aged men), seronegative spondyloarthropathies, etc. These patients need to be seen by a rheumatologist. Such patients need further consultation with the rheumatology department. 4. If you have low back pain combined with abdominal and chest pain. You may need to go to the internal medicine department to check in detail whether you are suffering from chronic gastrointestinal disorders, heart and kidney disorders (coronary heart disease, nephritis, urinary stones, etc.), liver and gall bladder disorders, and if you are a woman, you also need to exclude gynecological disorders, etc. Do not take such disorders lightly. Second, for patients who only have leg pain but no back pain, you need to judge your condition against the following (a) First of all, you can look at the painful part of your leg (is it in the hip joint, around the knee joint, calf, ankle, or by the whole lower limb?) 1. pain in the inner or outer thigh: it may be discogenic pain, or high-grade disc herniation, or hip osteoarthritis, etc.; 2. pain around the knee: it may be intra-knee lesions (meniscal injury, knee osteoarthritis, rheumatoid arthritis), hip lesions, or lumbar disc degeneration, etc.; 3. pain below the knee: most likely lumbar disc herniation, or spinal stenosis. or spinal stenosis, or possibly meniscal injury. (2) The characteristics of pain can be used to determine the type of disorder you have. 1. If the pain is related to weather changes, such as cold weather or rainy weather induces pain; there is pain in the morning, relieved by a little activity, and then induced by more activity (the so-called “old cold leg”), that is, the patient can predict the weather changes according to the pattern of pain in the lower limbs. This is most likely to be osteoarthritis, which often occurs in northern areas. 2.If the pain is related to weather changes, the pain is aggravated by humid weather, not related to hot and cold weather (the so-called “old wet leg”); there is pain in the morning, relieved after half an hour or more of activity, with heavy symptoms in the morning and light symptoms in the afternoon. Then the most likely rheumatic osteoarthritis, or rheumatic immune disorders, often occurring in the southern region. 3, if the leg pain is related to walking, leg pain after walking for a period of time or distance, relieved after 5 to 20 minutes of rest, pain relief can continue to walk, and then pain recurrence (the so-called intermittent claudication); then most likely lumbar spinal stenosis, osteoarthritis, lower limb vascular disorders. Self-identification trick, if cycling does not appear lower extremity pain symptoms, and walking appears the above symptoms, then you may be lumbar spinal stenosis, rather than lower extremity vascular disorders; Third, for patients with low back pain; whether you have low back pain first, then leg pain; or leg pain first, then low back pain; or both low back and leg pain; can be analyzed based on low back pain or leg pain respectively, or more complex, it is difficult to simplify the discussion. In addition, it is necessary to clearly indicate that you need to distinguish whether your lower extremity symptoms are pain, numbness, or lower extremity weakness, stiffness, sinking, or a feeling of stepping on cotton on the bottom of the foot. cervical, thoracic, cranial, or neurological disorders. Therefore, you have to make a preliminary judgment based on the characteristics of your symptoms to determine which specialist you need to see.