The other day, a university in Chengdu made headlines on Weibo for adding “HIV urine test kits” to its vending machines, which received mixed reviews from the public. The possibility of infection, especially for those who are worried about whether they are infected with STDs, when they will develop, and whether they will be discovered by others, especially family members? So, how long does it take from unclean sex to the onset of the disease? 1, gonorrhea gonorrhea is caused by gonorrhea bacillus acute or chronic genitourinary tract septic inflammation, its incidence accounted for the first STDs, mainly by sexual transmission, incubation period (from infection to onset) 1-10 days, an average of 3-5 days. The typical performance is urinary frequency, urinary urgency, urinary pain, urethral outflow purulent discharge. 2, condyloma acuminata Condyloma acuminata is caused by the human papillomavirus (hpv) venereal disease, 90% of the direct transmission of sex, especially when the contact parts of the skin and mucous membranes are damaged, the virus is more likely to invade the infection. The incubation period is generally 3 weeks to 8 months, usually 3 months. Initially, there are only a few tiny red papules, which gradually grow into grain or rice size, dark red or brown papillae or warts. It is painless and easy to recur. Acetic acid (or white vinegar) is applied and will turn white after 3-5 minutes. 3, non-gonococcal urethritis is an infectious urethritis other than gonococcus, mainly refers to mycoplasma, chlamydia, mycobacteria, trichomonas caused by the urethritis. The typical performance is: urethral itching, burning sensation, a few have urinary frequency and urgency or mild painful urination, urethral orifice appears thin yellowish or white discharge, but the symptoms are lighter than gonococcal urethritis. 4, genital herpes This disease is caused by herpes simplex virus, incubation period of 3 to 14 days. The manifestation is: small blisters in clusters of pinhead size on the external genital or perianal erythema, which break down after 2 to 4 days to form vesicles or ulcers and are painful, and the course of the disease is about 2 to 3 weeks. But it is easy to recur. 5, syphilis Syphilis is a sexually transmitted disease caused by the syphilis spirochete. It is mainly transmitted through the sexual route. The most common type of syphilis is stage I syphilis. The incubation period is usually 10 to 90 days, with an average of about 3 weeks. It is a mild vesicle or shallow ulcer with a diameter of 1 to 2 cm, round or oval, slightly elevated edge, and a flesh-red color, with a clean surface, little discharge, no pain or itching (without secondary infection), and cartilaginous hardness when palpated. The incubation period from the time the syphilis spirochete invades the organism until the onset of phase II damage is 6 to 8 weeks. The incubation period from the time the syphilis spirochete invades the organism to the time when stage III damage occurs is 2 years. 6.AIDS is a disease caused by human immunodeficiency virus (HIV). The main transmission routes are: sexual transmission, blood transmission (such as drug use, blood transfusion), vertical transmission from mother to child, etc. The incubation period is 8 to 9 years on average, and the infected person will develop into an AIDS patient only after an incubation period of several years or even up to 10 years or longer. Malignant tumors occur, and long-term wasting occurs, to the point of systemic failure and death. Influencing factors: The influencing factors of the incubation period are related to age, immunity and viral load and the route of infection. 7, scabies scabies is a pruritic skin disease caused by the human scabies mite parasitic in the human cuticle. It can be transmitted both through sexual contact and through skin-to-skin contact of non-sexual relations. Initially, it is usually mildly erythematous and asymptomatic, with characteristic itching and rash not appearing until one month after the infestation. The mite population peaks 3 months after infestation and then declines. Influencing factors: related to local immune characteristics of the host and specific physiological characteristics of the skin. The incubation period of STD is affected by various factors such as age, body mass, immunity, amount and toxicity of virus (disease-causing microorganism), alcohol and use of antibiotics, and the time can vary. However, in order not to get infected with STDs, you also have to be clean and avoid unclean sex. If there is a possibility of being infected sex, be sure to go to the regular public hospital of male, gynecology, STD department, do not feel free to buy their own medicine to eat, and do not go to black clinics, black hospitals, so as not to be deceived.