After minimally invasive laminectomy or intervertebral disc surgery, some patients experience some common lower back and lower extremity symptoms on the affected side. Since most patients with lumbar disc herniation have experienced pain before surgery, they panic when these symptoms appear after surgery, worrying that the herniated disc has recurred and that the surgery was for nothing. Some patients even develop anxiety, and both the patients themselves and their families are very nervous. In fact, for the vast majority of surgical patients, the recurrence of symptoms is normal. This is similar to the situation when you squat in your daily life and work for more than 5 minutes, and when you get up again you will experience numbness in your lower limbs. This is due to the fact that the nerve has been compressed for a period of time, and once the disc tissue (nucleus pulposus) that was compressing the nerve has been surgically removed, the compressed nerve reacts with a “vengeance” during the recovery process. Common clinical symptoms after minimally invasive surgery: 1. Preoperative pain in the lower limbs, symptoms disappeared within 3-5 days after the operation, and then similar pain and numbness reappeared. Reason: Nerve root edema after surgery, usually symptoms disappear within 1-2 weeks after surgery. Treatment countermeasures: Reduce the time of downward activities, straight leg raising training, pain is obvious can be taken orally Cilopodium, Herba Mullein, Mai Zhi Ling and other drugs. Severe cases can be infused with fluids to reduce swelling, commonly used drugs mannitol, sodium heptaphyllosaponin 2, postoperative lumbar pain and discomfort, some patients will have hidden pain in the buttocks and thighs. Reason: mostly related to excessive postoperative activities on the ground, poor strength of lumbar and back muscles treatment countermeasures: it is recommended that when the above situation occurs, patients should reduce the time of activities on the ground, bed rest for 3-5 days, and strengthen the lumbar and back muscles functional exercise, and the symptoms can be relieved. 3, a long time after the operation, a certain posture or action instantly triggered by a transient lower limb “run like electricity” feeling reason: mostly for the repair process of the damaged nerve abnormal performance. Treatment countermeasures: there is no need to panic in this situation, usually 3-6 months after the operation gradually disappears, some patients have a longer duration, usually will not cause a major impact on daily life. 4.Pre-operative pain in the lower limbs, not numbness, the pain disappears after the operation, but there is numbness, soreness and swelling in the calf, dorsum or sole of the foot and other parts of the reason: for the nerve decompression of the secondary reaction, as common in daily life squatting for a long time, numbness of the lower limbs after standing is similar to the situation. Treatment countermeasures: Usually the symptoms gradually disappear after 3-6 months, and neurotrophic drugs such as methylcobalamin can be taken orally. 5. After surgery, when wearing a waist corset, you feel unstable when you get down to the ground, and the lower limbs on the affected side feel weak, and some patients feel that the thickness of the two legs is not the same. Treatment countermeasures: strengthen the straight leg raising exercise after surgery to increase muscle strength. The vast majority of patients can be improved through rehabilitation and functional exercises. However, patients with severe disc herniation have already experienced lower limb weakness before surgery, and the nerves have been damaged due to long-term compression. These patients usually do not recover well, and even if they do recover, it takes a long time. This is why some patients with herniated discs are advised to have surgery sooner rather than later. Once a nerve is dead, it cannot regenerate. The effect of surgery is directly related to the degree of nerve damage (this is like saving people from an earthquake, people are smashed to death, it’s useless to save them).