Common causes of lumbar disc herniation include: 1, trauma: such as acute injury, lumbar sprain, easily induced lumbar disc herniation; 2, excessive weight bearing: the high incidence of lumbar disc herniation is generally physical workers, due to excessive weight bearing, it has been found that normal people are prone to lumbar disc herniation if they carry more than 100kg of weight, because weight bearing will make the disc narrow, pressure increase, to 3, bad position: the work requires constant change of position, including sitting, standing, lying, and difficult to avoid a variety of non-physiological posture, easy to make the intervertebral disc suffered trauma or cumulative injury, such as lifting heavy objects, often due to poor posture and induced the disease; 4, often vibration: the most common crowd for drivers, long-term sitting and bumpy state, the lumbar intervertebral disc under pressure, long-term vibration will lead to increased disc pressure, accelerating lumbar disc degeneration and protrusion; 5, lumbar spinal deformity: on the congenital secondary deformity patients, due to the unequal width of the intervertebral disc, and there is often torsion, so that the pressure on the fiber ring is not the same, easy to accelerate the degeneration of the intervertebral disc and lumbar spinal deformity patients with disc protrusion, is also a class of high-risk groups; 6, disease: some diseases can lead to increased atherosclerosis, resulting in Intervertebral disc degeneration accelerated, such as common diabetes; 7, pregnancy: such as pregnancy after the lumbar spine weight-bearing increase, easy to cause disc herniation; 8, smoking: smoke because of the presence of a large number of nicotine and lead to vasoconstriction, intervertebral disc blood supply will also be reduced, and prone to degenerative changes, easy to produce lumbar disc herniation.