For patients suspected of having sciatica, the diagnosis can be confirmed in the following ways: First, the doctor will ask the patient if he or she has any relevant medical history and typical clinical symptoms, such as any previous episodes of such disease, or if there is any obvious pain, radiating pain, numbness, or weakness in one lower extremity at this time. Second, the doctor will conduct a thorough physical examination of the patient, such as pressing on the path of the sciatic nerve to see if there are any obvious painful points, and if so, tapping on it to see if there is any radiating pain in the lower extremity. In addition to this, passive flexion and extension of the lower extremity will be done to see if there is any obvious increase in pain in the lower extremity during this process, if all of the above conditions exist, it highly suggests that the patient may have this disease. Thirdly, on the basis of the above examinations, patients may also be improved with relevant auxiliary examinations according to clinical needs, such as MRI, electromyography, ultrasound, etc. After the above three examination steps are completed, the diagnosis of sciatica can be confirmed.