Depending on the model and sequence settings of each hospital, the examination time of lumbar MRI may vary slightly, but basically the examination will be finished within 8 minutes. However, during the examination, it should be noted that there may be symptoms of fever or nerve irritation and muscle tremors, which are normal. The subject should not be nervous and must remain calm and relaxed. Lumbar spine MRI is mainly to observe the lumbar vertebrae, intervertebral discs, spinal canal, as well as the spinal nerves and nerve roots for lesions, disc herniation, compression fractures and other manifestations. Before examining the lumbar spine MRI, patients must pay attention to whether they have metal implants or electronic implants in their bodies, and must communicate fully with the clinician and the MRI room staff to ensure the safety of the examination. You also need to remove your lumbar support before the examination. Some patients have plasters on their lower back, which may affect the quality of the examination images, so they should all be removed before the examination to ensure that patients receive quality, efficient and accurate medical services. Some patients will have metal implants in their lumbar spine, such as supported artificial discs or metal plates, because they have had lumbar spine surgery, but in fact these are not dangerous. Because they penetrate deep into the vertebral bone, they do not shift and have minimal impact on the body and can be examined with confidence.