Venereal disease is traditionally thought of as a disease transmitted through sexual intercourse, with the main lesions occurring in the genital area. They include syphilis, gonorrhea, soft chancre, lymphogranuloma venerealis and inguinal granuloma. How to prevent and treat STDs? 1, STDs are a group of infectious diseases that are mainly transmitted through sexual intercourse, including syphilis, gonorrhea, AIDS, genital trachoma, chlamydia, genital herpes, condyloma acuminata, etc. Among them, syphilis, gonorrhea and AIDS are the infectious diseases of category B under the Law of the People’s Republic of China on the Prevention and Control of Infectious Diseases. Because of the seriousness of AIDS and other reasons the country will be listed separately. 2.STD endangers the physical and mental health of human body and the next generation, poses a serious threat to family happiness, social stability and economic development, and has become one of the important public health problems in the world. 3.Most STDs are preventable and treatable. In addition to AIDS, syphilis, gonorrhea, genital chlamydia can be completely cured, condyloma acuminata, genital herpes can be clinically cured. 4, STDs can promote the spread of AIDS. Human infections with STDs can cause breakage and inflammation of the skin mucosa. It is easy to be infected with HIV and infect others with the virus, therefore, prevention and control of STDs is an important measure for the prevention and control of AIDS. For example, syphilis can be transmitted to the fetus through the placenta, and gonorrhea or Chlamydia trachomatis ophthalmia can occur in newborns during childbirth due to contact with maternal secretions contaminated by the birth canal. 6, general daily contact such as shaking hands with STD patients, hugging, eating, etc. will not be infected with STDs. In order to prevent a few cases, STDs through contaminated household utensils infect others (mainly children), families with patients should do a good job of cleaning and hygiene to prevent transmission through household utensils, such as adults and children sleep in separate beds, separate the use of bath tubs and pay attention to the toilet ring hygiene. 7, if there is urethral discharge, leucorrhoea, rash, genital rupture, blisters and other suspicious symptoms of sexually transmitted diseases, should promptly go to the regular hospital for examination and treatment. Because early detection, standardized treatment can improve the effectiveness of treatment, reduce the occurrence of complications, sequelae, and the risk of infection and transmission of AIDS. 8, STD infection can have no conscious symptoms, especially in women. Therefore, those who have multiple sexual partners, frequent change of sexual partners and other unsafe sex should go to the hospital regularly for examination. 9, not all the damage and lesions occurring in the genital area are STDs, and require careful identification by doctors. The diagnosis should be made carefully by combining medical history, history of sexual contact, physical examination, laboratory results and other comprehensive analysis. 10, follow the doctor’s instructions and regular review is very necessary, self-stopping, increase or decrease drugs, self-treatment or find a travel doctor treatment will cause adverse consequences.