I. Is the back and leg pain a herniated disc compressing a nerve? If it is a herniated disc compressing the nerve, then how to explain the following situations: 1. Patients who have undergone CT or MRI examination within six months after disc herniation surgery and found no change in the herniated area. 2, Why patients with bulging discs can also have the same symptoms of low back and leg pain as patients with herniated discs. 3.With our CT-guided drug treatment, the patient’s back and leg pain can disappear, but the herniation does not change on CT and MRI examination. 4.Some normal people have no symptoms of low back and leg pain, but herniated discs are shown on CT and other imaging. Second, when pushing, the herniated disc can be pushed back? A: To answer this question, you need to understand some local anatomical knowledge of the human body; the intervertebral disc is located between two vertebral bodies, there is a spinal canal behind the disc, herringbone rows of bony vertebral arches, and there are 3-4 centimeters of muscle, when pushing, the force used must pass through the above-mentioned tissues to reach the herniated disc. The herniated disc is a soft tissue, which is elastic in itself, and the herniated part will not retract even if the herniated disc is directly compressed. Therefore, we believe that the protruding disc is impossible to be pushed back! Third, the more patients with lumbar synostosis have back and leg pain, the more they have to exercise? A: To know whether you can exercise or not, you have to understand why patients with lumbar herniation have low back and leg pain? The intervertebral disc is composed of the fibrous ring and the nucleus pulposus, the normal intervertebral disc is a sealed compartment, the fibrous ring wraps the nucleus pulposus tightly, the nucleus pulposus contains many chemical substances, when the fibrous ring cracks, fissures, fractures in serious cases, the chemical substances contained in the nucleus pulposus overflow, or leak, there is a local chemical inflammation of the back of the intervertebral disc, if it affects the sciatic nerve, also known as chemical radiculitis, the disc at this time is like a Leaky tire, the more you press, the more gas leaks, the more pain. Therefore, you cannot exercise. Fourth, the decision that treatment is needed is based on CT and MR imaging alone? A: Nowadays, there are a lot of patients who come to the clinic and just as soon as they see the physician, they take out the CT or MR film and say; “Physician, I have a herniated disc in my lumbar spine and I need interventional treatment.” There are also patients who go to the hospital and the physician doesn’t say a word, doesn’t ask about the medical history, picks up the CT or MR film and then says: “Open up and put on a plate”. This is a big misconception, because a normal person can have a herniated lumbar disc. There are three major elements in the treatment of lumbar herniation: 1. clinical symptoms: back pain, leg pain. 2, physical examination: 3, imaging tests: lumbar spine CT, MR, X-ray plain film. The three major elements must be complete before treatment can be done. Also, imaging examinations (CT, MR) check that there is a herniated / bulging disc, but no clinical symptoms, do not do any treatment! V. Use multiple interventional treatments for one disc at the same time? A: At present, we have a variety of interventional treatment methods in China: 1, ozone; 2, collagenase; 3, semiconductor laser; 4, disc cutting; 5, radiofrequency; 6, temperature-controlled thermal therapy disc repair (IDET) and so on. In addition to IDET, the mechanism of the above minimally invasive interventions is the same as that of surgery; surgery is an open incision to remove the nucleus pulposus; minimally invasive interventions are used to eliminate the patient’s back and leg pain by heating, chemically dissolving or removing the nucleus pulposus within the disc, also known as; disc decompression. Therefore, if multiple minimally invasive interventional treatments are used or applied multiple times to an intervertebral disc to destroy the nucleus pulposus, the more nucleus pulposus is obtained, the more significant the destruction of the disc. Although the clinical symptoms are eliminated or alleviated at that time, the hidden danger of disc function decline is greatly increased after the destruction of the disc.