三叉神经痛是神经性疼痛疾患中最常见者。据国内统计,本病发生率约为182/10万人;多见于中、老年人,40岁以上者约占70%~80%,女性居多[1]。三叉神经痛(TN)是面部三叉神经分布区的发作性短暂而剧烈的疼痛;严重者面部肌肉成反射性抽搐,口角牵向一侧,故又称“痛性抽搐”。疼痛不超出 Trigeminal neuralgia is the most common neuropathic pain condition. According to domestic statistics, the incidence of this disease is about 182 / 100,000 people; more common in the elderly, more than 40 years of age about 70% to 80%, mostly women [1]. Trigeminal neuralgia (TN) is a transient and intense episode of facial trigeminal nerve distribution. In severe cases, the facial muscles become reflex twitching and the mouth is pulled to one side, so it is also called “painful convulsion”. The pain does not go beyond