Lumbar muscle strain, acute lumbar sprain, lumbar spinal stenosis, lumbar disc protrusion, lumbar degenerative disease, etc. can cause low back pain. 1, lumbar muscle strain for long standing and sitting, long-term weight-bearing activities caused by long-term fatigue of the lumbar muscles weight-bearing activities can not recuperate and appear waist pain and discomfort and bending activities are limited. 2, acute lumbar sprain caused by acute strain of the lumbar muscles, can appear lumbar pain, swelling, activity restrictions. At this time, immediate bed rest, lumbar physiotherapy, hot compresses, oral treatment with non-steroidal anti-inflammatory and analgesic drugs, and the use of lumbar circumference to protect the waist. 3, lumbar spinal stenosis, will appear lumbar pain, lumbago, lower limb weakness and other symptoms, walking for a period of time need to rest, and then can continue to walk, serious cases may appear lower limb muscle atrophy. This disease requires bed rest, nerve nutrition treatment, and surgery if necessary. 4, lumbar disc herniation, manifested as lumbar pain with radiating pain in the lower limbs, as well as lumbar spine activity restriction. There may be lumbar scoliosis, which is compensatory scoliosis, but the lumbar protrusion can be normal when it gets better. 5. Degenerative lesions of the lumbar spine, such as lumbar spine osteophytes, can cause lumbar pain, restricted activity, and even loss of muscle strength in both lower limbs and inability to walk. Low back pain is generally caused by the above common diseases, but each has its own characteristics, the specific need to go to the hospital examination combined with symptoms to finally confirm the diagnosis and give active treatment.