Paroxysmal shooting pains of the facial area around one or more branches of the trigeminal nerve, of unknown cause, but often precipitated by irritation of the affected area. Also called tic douloureux三叉神经痛：发生在脸部一个或多个三叉神经周围的阵发性巨痛，原因不明，但通常是由对受影响区域的刺激引起的 也作 tic douloureux