Discogenic lower back pain is an extremely common and clinically prevalent condition, which is chronic lower back pain caused by intra-disc disorders (IDD) such as degeneration, intra-fibular ring fracture, and discitis that stimulate pain receptors within the intervertebral disc without radicular symptoms, without radiological evidence of nerve root compression or excessive displacement of vertebral segments, and can be described as chemically mediated discogenic pain. (I) Clinical features The most important clinical feature of discogenic lower back pain is decreased tolerance to sitting, with pain often increasing in the sitting position, and the patient can usually only sit for about 20 minutes. The pain is mainly located in the lower back, and sometimes it can be dissipated to the lower extremities. 65% of them are accompanied by pain below the knee of the lower extremities, but there are no specific signs for diagnosis. (B) Imaging characteristics 1, MRI: T2-weighted images in the lesioned discs all show low signal changes (disc darkening), and the presence of a high signal area behind the fibrous ring is a sensitive manifestation of IDD, but cannot be used as the gold standard for specific diagnosis. This is because MRI can be normal in 10% to 20% of patients with disc tears. 2, discography: Discography is currently the most reliable means of diagnosing discogenic pain. Discography can only be considered positive if pain is induced and replicated during discography and if discography shows a tear in the annulus fibrosus. If there is only an annulus fibrosus tear or contrast leakage and the patient has no induced, replicating pain, it means that the disc may not be related to the patient’s pain. (C) Diagnostic criteria There is no gold standard for the diagnosis of discogenic lower back pain, and it is generally believed that the following conditions must be met: 1. or no history of trauma, with recurrent symptoms lasting >6 months; 2. the above-mentioned typical clinical manifestations; 3. positive discography or MR manifestation of a typical single-segment intervertebral disc with low signal and a high-signal area in the posterior part of the fibrous annulus.