Generally speaking, the typical symptoms of lumbar disc herniation are lumbar pain first, followed by radiating pain in one or both lower extremities and numbness in the lower extremities after a period of time, and the symptoms of lumbar pain will be reduced or even disappear after the appearance of lower extremity pain. Of course, some patients may not have low back pain but simply have lower limb symptoms. Most lumbar disc herniations do not cause paralysis, but one type of lumbar disc herniation can cause damage to the cauda equina nerve, which can lead to urinary and fecal incontinence and, in severe cases, paralysis of both lower limbs. We have come across two such cases. Therefore, patients suffering from lumbar disc herniation should go to the hospital as soon as acute pain and numbness in the perineal area occur, so as not to delay the condition. Treatment should be emergency surgery, if there is no surgical condition can apply high dose of hormone (such as methylprednisolone) and timely referral to a hospital with surgical condition for consultation.