The severity of L5/S1 herniated disc central type is determined by the results of imaging tests and your own symptoms and signs. 1. Imaging examination: MRI can accurately give the degree of spinal cord compression in the lumbar spinal canal. If the degree of compression is obvious, it means it is more serious. 2. Own symptoms: L5/S1 disc herniation is often accompanied by sciatica, which is radiating pain from the buttock, posterior lateral thigh, lateral calf to the heel or dorsum of the foot. If sciatica occurs, it will affect the patient’s walking and sleep, and the pain is often unbearable, which seriously affects the quality of life. 3. Physical signs: If there is pain on the lateral side of the calf, lateral ankle, lateral side of the foot, etc., and physical examination reveals decreased tactile sensation, toe dorsiflexion and plantarflexion muscle strength, which indicates that the nerve root compression symptom is obvious, then it is more serious. It is recommended that patients with centralized L5/S1 disc herniation should undergo standardized treatment under the guidance of a specialist as early as possible to reduce the adverse effects of the disease.