Intramedullary tumors are divided into intramedullary and extramedullary tumors, with extramedullary tumors being the most common and benign. Most patients have typical clinical manifestations, starting with neurogenic irritation symptoms in the early stages, followed by spinal cord compression. The first symptom is mostly pain, followed by unsteadiness in walking, and then there are manifestations of muscle weakness and sensory impairment and sphincter dysfunction. The pain is nocturnal and radiating, and may be combined with herpes zoster in the painful area. Patients are often misdiagnosed with orthopedic diseases when the first symptoms appear, and treatment is often delayed, and most of them are not relieved for several months to years and progressively worsen before consulting neurosurgery. Initially, the syndrome presents as a hemisection of the spinal cord on one side, and then develops into bilateral signs. Usually this process progresses slowly, but there is rapid deterioration when the tumor is bleeding, cystic degeneration or ischemia in the spinal cord, therefore, if suspected, early MRI should be performed to clarify, and once the tumor is diagnosed clearly, surgery should be performed as soon as possible, and the surgical effect is obvious.