Main ways of transmission of sexually transmitted diseases

 　　Sexual intercourse is sexually transmitted disease the main route of infection, when healthy Pathogens can pass through the genitals when a person has sexual intercourse with a patient skin Mild abrasions of mucous membranes invade the human body, such as gonorrhea and syphilis, or can be transmitted through close physical contact during sexual intercourse, such as scabies , molluscum contagiosum, pubic lice, etc.

　　Other sexual behaviors such as oral-genital contact, oral-anal contact, genital-anal contact (anal intercourse) are one of the transmission routes, such as male gay AIDS and intestinal infections. A few sexually transmitted disease pathogens can also be transmitted through indirect channels, such as gonorrhea, scabies and trichomoniasis that are transmitted through the patient's contaminated towels, underwear, bedding, bathtubs, toilets, etc. It can also be transmitted through blood transfusions or blood products, injection needles, etc., such as hepatitis and AIDS. Some sexually transmitted diseases can also be infected during pregnancy and childbirth. fetus Or newborns, such as fetal-transmitted syphilis, neonatal gonorrhea conjunctivitis, and neonatal herpes infection.

　　Depending on the route of infection, sexually transmitted diseases Can be divided into the following types:

　　Anal intercourse - intercourse type (level 1 STD) : Mainly transmitted diseases through anal intercourse or inter-genital intercourse, represented by AIDS.

　　Genital—sexual intercourse type (secondary STD) It is mainly a disease transmitted by genital contact or sexual intercourse, represented by gonorrhea, syphilis, chancroid, lymphogranuloma venereum, inguinal granuloma, non-gonococcal urethritis, venereal chlamydia/genital mycoplasmosis, trichomoniasis, etc.

　　Skin and mucous membranes—sexual intercourse type (level 3 sexually transmitted diseases) : Mainly caused by skin-to-skin, mucosa-to-mucosa contact or inter-genital contact, such as genital warts, genital candidiasis, genital herpes, pubic lice, scabies, molluscum contagiosum, hepatitis B, genital herpes, etc.

　　Fecal-oral-sexual intercourse (fourth degree sexual intercourse) It is mainly transmitted by fingers contaminating the fecal entrance or fecal-oral transmission during oral sex, such as intestinal giardia infection, amebiasis, shigellosis, salmonellosis, hepatitis A, etc.