How to determine whether a lumbar disc is anterior or posterior herniation can be differentiated according to the patient’s symptoms, signs, imaging and other manifestations. 1. Symptoms: Anterior herniation of lumbar intervertebral disc usually does not cause compression of nerve tissues, and usually has no obvious symptoms. Posterior herniation of lumbar intervertebral disc can cause pain and numbness in the lumbar region and lower limbs when it compresses the nerve roots and paravertebral nerves, and some patients may have abnormal sensation of the perineum and dysfunction of bowel and urinary functions. 2. Signs and symptoms: The back and lower limbs of anterior lumbar disc protrusion usually have no obvious signs of pressure and pain. Patients with posterior lumbar disc protrusion may have lumbar pressure and pain, and the lower extremity straight leg raising test and strengthening test are positive. 3. Imaging: Lumbar anterior disc protrusion in imaging mainly refers to magnetic resonance, can be observed in the lumbar disc forward protrusion. Posterior herniated lumbar discs can be observed to protrude backward into the spinal canal, compressing the dural sac and nerve roots. Patients with lumbar disc herniation are advised to go to the hospital for consultation, and the doctor will determine whether anterior herniation or posterior herniation and the degree of herniation based on the symptoms, signs, and auxiliary examinations, and further treatment will be conducted if necessary.