If the sciatic nerve is accidentally pierced during an intramuscular injection, generally speaking, depending on the severity of the sciatic nerve injury, the patient will experience different consequences: i. If the needle of the injection needle slightly pierces the sciatic nerve, at this time, the patient will have severe radiating pain. The puncture needle is immediately returned and no further damage is caused to the sciatic nerve, and the patient’s radiating pain symptoms can be relieved more quickly and will not last longer. Second, if the puncture needle is fully inserted into the sciatic nerve and the appropriate medication is injected into the interior. At this time, the tension around the nerve will be significantly elevated and the patient will have significant pain symptoms. If the drug has a certain degree of irritation, it may cause the patient to form sciatic neuritis, causing spastic pain in the muscles of the patient’s thigh or part of the calf, restricted movement, or even the manifestation of mild local paralysis, and this condition will require a longer time to recover.