Half a year after the lumbar spine surgery, the reason why the leg soreness, the main consideration is related to overwork, inflammation, lumbar spine lesion recurrence. 1. Overwork: after lumbar spine surgery, if there is overwork, excessive exercise, etc., the symptoms of leg pain can occur, pay attention to rest, lumbar spine surgery should be a combination of work and rest in daily life, try to avoid heavy physical labor. 2. Inflammation: For patients six months after lumbar spine surgery, if there is inflammation in the legs, such as fasciitis, inflammatory exudates can easily trigger symptoms of leg pain, timely anti-inflammatory treatment can be relieved. 3. Recurrence of lumbar spine lesions: If the lumbar spine recovers well after surgery, and the leg pain occurs for the first time after six months, the lumbar spine may have lesions again, which compress the nerves of the lower limbs and cause the leg pain symptoms. If the symptoms of leg pain are more serious, you need to consult a doctor for a review to clarify the specific causes, and then standardized treatment under the guidance of the doctor.