Often patients come in and ask why are you uncomfortable? I have a herniated disk. What are your symptoms? I have low back pain. Do your legs hurt? No pain. That’s not usually a herniated disk. I had a C.T. It says herniated disc. This situation is often encountered in the outpatient clinic. Patients are also confused, am I a herniated disc or not? Here we need to distinguish between two concepts, lumbar disc herniation is an imaging manifestation, while lumbar disc herniation is a clinical diagnosis. A herniated disc is not necessarily a herniated lumbar disc. With ageing or various overwork injuries, the discs are constantly degenerating and aging, and generally middle-aged people have different degrees of bulging or herniation. The difference between the two lies in a “syndrome”. Then we need to introduce the syndrome. How does this symptom come about? It is due to the herniated disc tissue for the nerve root, cauda equina compression. The former can cause pain in the buttocks and lower limbs, while the latter can affect sensation in the perineal area, urinary and defecatory function and sexual function. Lumbar disc herniation can only be diagnosed if the above symptoms are present, and the absence of such symptoms does not usually lead to a diagnosis of lumbar disc herniation. There are many causes of lumbar pain, such as lumbar muscle strain, intervertebral discogenic lumbar pain, lumbar spine instability, slippage, osteoporosis and so on. According to the specific situation, diagnosed by a professional physician, do not arbitrarily put a “lumbar disc herniation” hat. In the future gradually for you to explain a variety of common low back pain disease performance and treatment methods.