After lumbar foramenoscopy surgery, it is still painful to lift the leg and different treatments should be taken according to the cause of the disease, which generally include bed rest, local physiotherapy, use of anti-swelling drugs as well as neurotrophic drugs, and re-operation if necessary. 1. Postoperative nerve edema: it often occurs in the early stage after lumbar foramenoscopy surgery, which can be treated with bed rest, local physical therapy such as hot compresses, and the use of anti-swelling drugs such as mannitol and mazolol, and the majority of patients’ symptoms can gradually disappear within 1~2 weeks after surgery. 2. Nerve compression still exists: due to the operation is not completely clean, not completely lift the compression, can appear after the operation to lift the leg is still very painful, at this time may need another operation. 3. Nerve damage: often due to intraoperative accidents resulting in nerve damage, postoperative lifting of the leg can still be very painful symptoms, can be taken to hot compresses and other physiotherapy, mannitol, mazolene and other drugs to reduce swelling, methylcobalamin and other neurotrophic drugs to help patients recover. 4. Nerve not fully recovered: often occurs in the preoperative nerve injury is more serious, part of the nerve necrosis, degeneration, there may still be lifting the leg after surgery is very painful symptoms, bed rest, hot compresses, microwave and other physiotherapy, the use of methylcobalamin, neurontin and other neurotrophic drugs. After lumbar foramenoscopy surgery, it is still painful to lift the leg. It is recommended to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment or therapy with the help of the doctor. Medications should be used under the guidance of a doctor.