In clinical and network counseling often feel patients have such confusion: I have unsafe contact, STD incubation period is generally how long? How long can I detect it? What is the best method? STDs have a certain incubation period, and there is also a window period for STD detection. The incubation period of STD refers to the period from the entry of pathogenic microorganisms into the human body to the appearance of clinical symptoms of STDs. The window period for STDs refers to the period from the entry of pathogenic microorganisms into the human body to the time when they can be detected by testing methods. However, due to the influence of the environment and individual differences in patients, the incubation period and window period length is often inconsistent, and the incubation period of different STDs are different. Syphilis: the shortest can be within 1 week, the longest can be up to 1~2 months, the average 2~4 weeks. Gonorrhea: the incubation period is 2~10 days, the average is 3~5 days. AIDS: the shortest case can develop 6 days after infection, and the longest case has been reported to be as long as 14 years. The incubation period for adults is generally 29 months, while that for children is shorter, generally 12 months. 50% to 70% of people tend to have acute flu-like symptoms 1 to 2 weeks after infection. After infection with AIDS, anti-HIV antibodies can be produced in a few weeks to 6 months; if infected by blood transfusion, anti-HIV antibodies can be produced in 2~8 weeks; if infected by sexual intercourse, HIV antibodies can be produced in 2~3 months. Condyloma acuminatum: According to the survey, the incubation period of condyloma acuminatum is 3 weeks to 8 months, with the shortest period being 3 to 4 weeks, and the longest incubation period being 8 to 12 months, with an average of 2.8 months. Most clinical observations report that the incubation period for condyloma acuminatum is about 3 months. Non-gonococcal urethritis (chlamydia and mycoplasma): usually 1~4 weeks, the longest can be as long as 1 month. Genital herpes: usually 2 to 10 days, with an average of 6 days. Patients who suspect that they have inadvertently contracted an STD should eliminate psychological barriers and fears, and go to the hospital for regular screening. Each method of STD testing has its own certain specificity and sensitivity, and it is possible that an STD may not be detected by one method but can be detected by another. The rapid development of molecular biology has greatly enriched the laboratory testing methods for STDs, providing more diagnostic help for doctors. Currently most hospitals carry out the following STD testing programs and methods. Syphilis: dark-field microscopic examination of syphilis spirochete, serologic examination of syphilis spirochete antibody initial screening test (TRUST, RPR), serologic examination of syphilis spirochete antibody confirmatory test (TPPA, TPHA, FTA-ABS, TP-lgMWB). Gonorrhea: culture and identification of gonococci. Condyloma acuminatum: histopathologic examination, real-time fluorescence quantitative PCR, molecular hybridization genotyping test. Genital tract Chlamydia trachomatis infection: real-time fluorescence quantitative PCR. Mycoplasma solani and Mycoplasma hominis infections: culture and drug sensitization. Genital herpes: immunofluorescence assay, real-time fluorescence quantitative PCR, HSV antibody IgM and IgG detection. AIDS: colloidal gold rapid method, ELISA double antigen sandwich method, immunoblotting method. Charges vary according to geographic area, hospital, testing method, etc. The approximate costs are as follows: Syphilis:$30~120 Gonorrhea:$100. Condyloma acuminatum: 20~200 RMB (doing pathology will be more expensive); Genital tract Chlamydia trachomatis and Mycoplasma infections: around 100 RMB Genital herpes: around 60 RMB AIDS: 80-150 RMB. Original from: Health News_2013-02-28