Low back pain is a common clinical condition. Low back pain mainly includes strain pain (soft tissue pain), discogenic pain, and rheumatic diseases. Leg pain mainly includes lumbar disc herniation, arthritis, vascular disease, and rheumatic disease. So what are the causes of low back and leg pain? What are the types? How to treat? What are the causes of low back and leg pain? There are many causes of low back and leg pain, except for a very small number of patients caused by acute trauma, most of them are caused by chronic strain, degeneration, hyperplasia and disc herniation. In addition, osteoporosis, spinal cord tumors and other diseases can also cause low back pain. The lesions that cause low back and leg pain are often soft tissue, followed by bone and joint lesions, and vascular lesions are rare. The diagnosis of low back and leg pain diseases is generally not difficult and can be determined by medical history, physical examination and various diagnostic instruments. Classification of low back and leg pain 1. Soft tissue low back and leg pain refers to low back pain caused by soft tissues such as paraspinal dorsal extensors, supraspinal and interspinous ligaments, and transverse interproximal ligaments. It can be divided into traumatic (lumbar soft tissue strain and contusion), inflammatory (myofibrillar tissue inflammation, fasciitis), strain (lumbar muscle strain, lumbar transverse process syndrome), and compression (pear-shaped muscle injury syndrome), etc. 2, osteoarthritic low back pain, refers to the vertebral bones and joints due to some kind of injury generated by low back pain. There are traumatic (spinal small joint synovial imbrication, dislocation, fracture), inflammatory (dense osteitis, ankylosing spondylitis), degenerative (lumbar small joint degeneration, hyperplasia), structural instability (lumbar arch isthmus disconnection, lumbar spine slippage, scoliosis), etc. 3, endogenous lumbar and leg pain of vertebral canal, refers to the lumbar pain caused by certain causes in the vertebral canal. Such as lumbar disc herniation, spinal stenosis, intra-vertebral canal tumor, etc. 4, other causes of low back and leg pain, such as visceral disease reflex low back pain. Chinese medicine believes that kidney deficiency and wind, cold and dampness invasion can also cause low back pain. Treatment of low back pain: For the treatment of acute low back pain, the following five methods can be adopted. 1, bed rest, internal or external use of Chinese and Western medicine pain relief and antispasmodic drugs. The painful point can be cold compressed or locally closed. 2, the application of orthopedic manipulation to rectify the protruding disc, intervertebral joint or sacroiliac joint subluxation, release the small intervertebral joint embedding, restore the internal and external balance of the spine. 3, can take oral non-steroidal anti-inflammatory drugs, such as ibuprofen extended-release tablets, celecoxib, etc.. 4, some serious lumbar disc herniation compression of the sciatic nerve or spinal nerve resulting in pain in the limbs obviously affect life and work can choose surgery treatment. 5, you can also go to the hospital physical therapy department to choose physical therapy treatment, such as traction, fire cupping, acupuncture and other treatments.