Cauda equina syndrome(CES) and disc hemiation have been implicated as a potential complication of Chuna Manipulation Treatment. We reported a man who developed sudden complication alter lumbar Chuna Manipulation Treatment. It is supposed that this patient suffered a disc herniation secondarily due to a lumbar Chuna Manipulation Treatment. Therefore, doctors should be aware that neurological complication may occur as a result of lumbar Chuna Manipulation Treatment.