1985年3月我院曾见一例牙龈良性粘膜类天疱疮,尼氏征阳性。特报告如下:段××,女,45岁,云南昆明市籍。因牙龈反复起疱、溃破、疼痛9月余转我科就诊。患者近九个月来,牙龈反复起疱,疱约米粒到黄豆大小,一、二天后破溃流出成味、血性液体,在牙龈上留下白色疱壁,继之剥脱呈红色溃疡面,伴刺激痛。起疱间隙时间长短不一。初发时仅局限于下颌后牙龈部,随病情加重,全口牙龈均有类似损害。曾在其它医院诊断为“牙周炎”“剥脱性龈炎”等。经洁治、消炎,维生素类药物治疗 March 1985 in our hospital had seen a case of benign mucocutaneous pemphigus, Niger's positive sign. Special report is as follows: paragraph × ×, female, 45 years old, Kunming, Yunnan nationality. Repeated blisters due to gums, ulceration, pain more than 9 months to my treatment. Patient nearly nine months, repeated gingival blisters, blisters about rice to soy size, one or two days after the ulceration outflow into the taste, bloody liquid, left in the gums white blisters wall, followed by exfoliation was red ulcers, with Sore pain. Blisters up the gap between the length of time. Initial episode confined to the gingival portion of the posterior teeth of the jaw, with the aggravating illness, all gums have similar damage. In other hospitals have been diagnosed as “periodontitis” “exfoliative gingivitis” and so on. After the clean governance, anti-inflammatory, vitamin drugs