Clinically, lumbar disc herniation above lumbar 3 and 4 is usually referred to as “high lumbar disc herniation”. Typical clinical manifestations of high lumbar disc herniation: 1. Most patients have a history of trauma and symptoms of lumbar pain of different lengths, with recurrent episodes. 2. Pain and numbness in the front of the thigh, atrophy of the thigh muscles and weakening of the knee extension in those with long duration of disease. It is mainly due to the involvement of femoral nerve. Some patients have sciatica and positive straight leg raise test. For example, if lumbar 3 or 4 disc herniation compresses lumbar 4 nerve root, because lumbar 4 nerve is involved in the composition of sciatic nerve, there may be sciatica symptoms, which makes the straight leg raise test positive. It may also cause pain because the lumbar 3 and lumbar 4 discs herniate to the center and the septal sac compresses the cauda equina part of the lumbar 5 nerve that is about to be emitted, which also increases the sensitivity of the sciatic nerve. 4, Sudden paraplegia. Lower extremity paraplegia is one of the most common symptoms of high central lumbar disc herniation, usually caused by compression of the cauda equina nerve in the lumbar ~ lumbar 4 segment, and the knee tendon reflex is weakened or not induced. 5. Positive femoral nerve pull test. The patient lies prone on the bed, the affected leg is bent at 90°, the examiner holds the patient’s ankle and lifts it upward, and the pain in the front of the thigh is positive, indicating that the femoral nerve has pulling pain. The above symptoms are only partially revealed and not every patient with high lumbar disc herniation has them. It is mainly because the mechanism of nerve root compression in high lumbar disc herniation is different from that in low lumbar disc herniation, and the resulting nerve root compression symptoms are more vague and not as typical as the above symptoms, so many patients are misdiagnosed and missed. Based on the above clinical manifestations, those suspected of high lumbar disc herniation should be diagnosed as early as possible with the help of advanced medical tests, such as CT tomography, magnetic resonance imaging, spinal canal imaging, etc. The treatment of this disease mainly lies in early diagnosis and timely surgery. Surgery only after the development of paraplegia is often difficult to recover because of severe damage to the nerves by acute compression.