1, STDs are not a disease, but a group of diseases The old concept of STDs, also known as “phimosis”, refers to a variety of systemic diseases transmitted through sexual intercourse, with obvious damage to the genital organs, usually including only syphilis, gonorrhea, soft chancre, venereal lymphogranuloma and inguinal granuloma and other five diseases, which are also known as “classical STDs”, from the 1970s, the diseases included in STDs gradually increased, and in 1975 the World Health Organization (WHO) officially decided to use the name of sexually transmitted diseases (STDs) to replace the concept of STDs, which include more than 20 kinds of diseases. 2, STDs are a group of systemic diseases Although most STDs have obvious damage to the reproductive organs, many STDs can affect multiple systems and organs throughout the body, and some do not even have obvious damage to the reproductive organs. So don’t think that only the genital lesions of STDs Source: medical education network 3, STDs do not refer to all diseases of the genitourinary system STDs are a group of infectious diseases, STDs affecting the genitourinary system is only a very small part of all diseases of the genitourinary system. Do not say that all diseases of the genitourinary system are STDs. Some people have observed the skin mucous membrane with genital area abnormalities in the skin venereal disease department outpatients, found that more than half of the patients are non-STD damage. 4, venereal disease does not include sexual dysfunction Sexual dysfunction is a group of diseases that can not be normal sexual activity or pregnancy and childbirth, such as impotence, premature ejaculation, sexual frigidity, infertility, premature birth, sometimes Chinese medicine will be sexual dysfunction as “venereal disease”, but never the venereal disease referred to here. Although venereal disease can cause sexual dysfunction, but venereal disease is a group of infectious diseases, not including sexual dysfunction. 5, sexual contact is not only refers to sexual intercourse sexual intercourse is generally refers to penile penetration of the vagina a sexual contact behavior. Sexual contact capable of transmitting diseases includes close skin-to-skin contact between all individuals, and they may be normal, abnormal, pathological, homosexual, such as anal sex, oral sex, kissing, etc. 6, STDs are not all transmitted by sexual contact STDs are mainly transmitted directly through sexual contact, accounting for more than 95%, but there are still a small number of contact with the patient’s secretions, blood-contaminated items and infection, that is, indirect transmission, including the same bed, the same bath, sharing bath towels, clothing, towels, toilets, injection needles, etc., some people call “innocent STDs Some people call it “innocent STD”. The sexual function disease is not the dermatologist’s scope of treatment, these diseases can go to the urology department male or Chinese medicine department, every day to see the overwhelming advertising, under the banner of “urological diseases”, is only some liars and the national policy to play ball, mislead and deceive patients means.