Many people with back and leg pain suspect that they have a herniated lumbar disc. Through various means, we will learn some common sense: the spine will gradually degenerate as people get older, and a herniated lumbar disc compresses the nerves and causes back and leg pain. However, the vast majority of people do not know that the main cause of induced lumbar disc herniation is: excessive pressure within the lumbar disc. The posterior side of the disc is relatively thin, and the strength of the fibers in the posterior part of the fibrous ring has been determined to be less than 100 kp/cm². Long-term excessive internal pressure in the intervertebral disc can easily lead to rupture of the annulus fibrosus and induce the appearance of lumbar disc herniation. As shown above, these people are most likely to have lumbar disc herniation. At the same time, improper sitting posture, increased abdominal pressure, sudden weight bearing, pregnancy, cold and moisture are common factors that lead to increased internal pressure in the intervertebral disc and induce lumbar herniation. Prevention of lumbar disc herniation starts with correct posture In addition, a slight bend in the knees when sneezing can share the abdominal pressure and the pressure on the spine. One-minute self-test of your lumbar spine 1. pain on one side of the waist, radiating through the buttocks to the back of the thighs, up to the calves and feet, and sometimes a numbness, aggravated by coughing. 2.After an acute lumbar sprain (i.e., flashback), the phenomenon of walking with a limp appears. 3.When sleeping flat on the back, the back pain cannot be straight and needs to be supported by hands or pillows, or sleep on the side. 4.The pain in the lower back is sore and cannot be relieved by sitting down and resting, and can be relieved by resting on the side. 5.Some point on the left and right side of the spine in the lower back 1 cross finger, there is obvious pain when pressed. 6, straight leg elevation test positive, the person being tested lies flat, knees extended, another person elevates the leg, lumbar disc herniation patients can appear within 60 ° elevation of the waist, hip pain, called straight leg elevation test positive. If you have any of the above 6 symptoms, it is recommended to go to the hospital for examination, and the degree of lumbar degeneration can be checked by CT.