梅毒是由梅毒螺旋体引起的慢性全身性传染病。按照临床病程将梅毒分为三期。一期梅毒的病变主要发生在外生殖器部位。二期梅毒常是因为一期梅毒没有经过治疗或治疗不规则,螺旋体由生殖器皮肤黏膜的“初疮”部位,经淋巴系统进入血液循环播散全身,常以皮疹为主要症状。三期梅毒又叫晚期梅毒,指感染梅毒螺旋体超过两 Syphilis is a chronic systemic infection caused by Treponema pallidum. According to the clinical course of syphilis will be divided into three phases. A syphilis lesions occur mainly in the external genital area. Secondary syphilis is often because there is no treatment of syphilis or treatment of irregular, spirochete skin genital mucosa from the “first sores” parts of the lymphatic system into the bloodstream to disseminate the body, often with the rash as the main symptom. Three syphilis, also known as late syphilis, refers to the infection of Treponema pallidum more than two