The correlation between patients’ lumbar disc herniation and clinical low back pain symptoms was found as follows: 1. Patients who had herniated discs and clinical low back pain symptoms on preoperative CT or MR examinations had the same postoperative imaging findings, and the herniated discs were still protruding and had not disappeared because of the surgery, even though the patients’ low back pain symptoms had disappeared after the surgery. 2. 2, some patients are bulging in the imaging examination, although he did not see the protruding disc compressing the nerve, but can have the same clinical symptoms of low back and leg pain as the herniated disc. 3, we carried out CT-guided drug intervention since 1993, many of the patients with herniated discs that most doctors believe must be treated surgically (including severe herniation of the disc or accompanied by free discs), the patients’ clinical low back and leg pain was resolved through the interventional therapy, and the patients’ clinical symptoms were improved. After the interventional therapy, the clinical symptoms of low back and leg pain disappeared, but the intervertebral disc was still found to exist in the imaging examination. 4. Some patients’ CT and MR imaging examinations showed that the herniated discs did not match their clinical symptoms; for example, the discs were herniated on the left side, but the radiating pain of the lower extremities was on the right side; or some patients had herniated discs in the L5-S1 region, but their clinical symptoms were caused by the lesions of the L4-5 discs. Therefore, clinical practice tells us that: 1. Patients with clinical symptoms of low back and leg pain can have a herniated disc on imaging (CT, MR). 2! 2. Patients who have herniated discs on imaging (CT,MR) can be clinically free of low back pain symptoms! 3, Imaging examination (CT,MR) has a herniated disc. Patients with no clinical symptoms of low back and leg pain should not worry about the herniated disc and do not need any treatment!