问:性传播疾病有哪些,对妊娠有何影响?性传播疾病(Sexually Transmitted Disease,STD)是指由一些特征性病原微生物引起,主要通过性行为传播的疾病,其范围极广,近年的研究发现,STD 的病原微生物包括螺旋体、细菌、病毒、原虫、真菌和寄生虫等六大类.螺旋体类主要是指引起梅毒的梅毒密螺旋体。细菌类有引起淋病的淋球菌,近 Q: What are the sexually transmitted diseases, the impact on pregnancy? Sexually transmitted diseases (Sexually Transmitted Disease, STD) refers to the disease caused by a number of characteristic pathogenic microorganisms, mainly through sexual transmission, the scope of a very wide range of recent studies It is found that STD pathogenic microorganisms include spirochetes, bacteria, viruses, protozoa, fungi and parasites, etc. The spirochetes mainly refer to Treponema pallidum that causes syphilis. Gonococcus bacteria that cause gonorrhea, near