第四性病又名为鼠蹊淋巴肉芽肿,他是梅毒、淋病和软性下疳以外的一种性病,因而通称之为第四性病。其发病率较其他三种性病为少,在城市中现已不多见。主要是由于性交传染,但偶也有非性交传染者。病原:是滤过性病毒,可以接种于猴、小白鼠、家兔等致成脑膜炎。在病人的身体上他存在于阴部损害、横痃上的脓汁以及淋巴结内。有人曾发现在病损浓汁的中性颗粒状白血球或淋巴球内有包含小体,每个约在0.3微米大小,可孤立,可呈双球状、连锁状或葡萄状。临床症状:因病期及侵犯部位而不同。主要损害有三种:(1)原发性损害,(2)鼠蹊淋巴结损害,(3)直肠、肛门以及阴部之损害。1.原发性损害:于感染后一、二周后先在外阴部 The fourth venereal disease, also known as the groin lymphatic granuloma, is a sexually transmitted disease other than syphilis, gonorrhea and soft gall, and is therefore commonly referred to as the fourth sexually transmitted disease. The incidence of STDs is less than the other three sexually transmitted diseases, is now rare in the city. Mainly due to sexual intercourse, but there are also non-sexually transmitted persons. Pathogen: is a viral disease that can be vaccinated in monkeys, mice, rabbits and other meningitis. He is present in the patient’s body in the genitals, abscessed pus and lymph nodes. It has been found in the lesions of juicy neutrophilic leukocytes or lymphoid bodies contain inclusions, each about 0.3 microns in size, can be isolated, can be double-spherical, chained or grape-like. Clinical symptoms: due to disease stage and violations of different parts. There are three main types of damage: (1) primary damage, (2) rat groin lymph node damage, (3) rectal, anal, and genitals damage. 1. Primary damage: one or two weeks after the infection in the genital area