When you have a sexually transmitted disease (STD), no matter what kind of STD it is, we all understand that it is the genital area that will be swollen, ulcerated and pus-filled, etc. However, there are quite a number of STDs, and there are even several important and harmful STDs, the early symptoms are not obvious, and what’s more, there is no obvious feeling for several years, and there is no symptom after getting it, and the patient does not have a hard time with it, and he/she doesn’t know that he/she is getting it either. This is the hidden nature of sexually transmitted diseases (STDs), so we all need to pay great attention to it. AIDS is mainly transmitted through sexual contact: no matter through homosexual sexual contact or heterosexual sexual contact, after being infected by HIV, no symptoms appear at the beginning stage, when the virus stimulates the body’s immune system, forming antibodies to the virus in the blood, clinical diagnosis by taking the patient’s blood, separating the serum, reacting to the patient’s serum with the antibody test reagent and the antibody reacts positively to the patient’s serum, and those who react positively to the antibody (generally repeat 2-3 times) can be diagnosed. A positive antibody reaction (usually repeated 2-3 times) is diagnostic of HIV infection. In other words, there is a process from the time the patient is infected with HIV to the formation of antibodies, and the time required for this process is the window period. Window period time of our Ministry of Health, Department of Disease Control in 2000 standards for 2-3 months, the longest up to 6 months. So it is not true that the earlier the HIV test is done, the better. In the clinic there are patients in a sexual contact outside of marriage is particularly worried about fear, especially on December 1 every year, “World AIDS Day” before there will be more patients than usual request for testing, and some even a week ago there was an unclean sexual contact, to the STD clinic consultation, said he felt weak, low fever, afraid of whether it is the AIDS, asked for a laboratory test. AIDS and asked for a laboratory test to be done in a hurry. This is a complete lack of understanding of AIDS. In fact, even if a person is infected with HIV, it is impossible for him to have a fever and generalized weakness after one week, and the test is meaningless at this time. A positive antibody test only means that the person is infected with HIV, it does not mean that the person is suffering from HIV, because at this time the infected person does not have any specific symptoms of HIV, that is to say, the infected person is still in the incubation period of HIV. The so-called incubation period is the timeframe between HIV infection and the development of AIDS patients. It varies greatly from patient to patient and is related to the age of the infected person, the route of infection, the amount of virus infected, etc. It is generally 6 months to 8-10 years or longer (individually as long as 15-17 years). In children, the incubation period is shorter, averaging 12 months. During this period of incubation, the patient does not feel any symptoms. So AIDS, a deadly STD, is highly insidious. And once the symptoms appear, it is very difficult to treat. That’s how insidious AIDS is. Syphilis: Syphilis is also a serious STD that invades all organs of the body and is contracted by the syphilis spirochete through sexual contact. In some people, the typical symptoms are ulcers on the pubic area after one month incubation period, and rashes on the whole body after two months, which is the typical clinical process of the so-called dominant syphilis. However, some syphilis patients are infected by the syphilis spirochete, the body does not feel uncomfortable, and does not appear pubic ulcers and other rashes, only when the blood test, only to find that has been infected by the syphilis spirochete, this situation is called hidden syphilis, or latent syphilis. This kind of latent syphilis can stay in the body for many years without showing any symptoms, but under certain circumstances, it can also become overt syphilis, that is to say, latent syphilis is not all right for the rest of your life, which is the hidden nature of syphilis. The main reasons for hidden syphilis: untreated syphilis, or insufficient dosage of therapeutic drugs, incomplete treatment, manifested in the patient has no clinical symptoms, syphilis seropositive; there is another situation, the patient has had some kind of infection pathway, but due to the patient’s strong resistance, there has been no or only appeared in the very unremarkable clinical symptoms such as cervical chancre, and has not been clinically manifested, but the serum is positive, these are all the syphilis. Seropositive syphilis is a recessive form of syphilis. The occurrence of occult syphilis depends mainly on the body’s own immunity, the result of the battle between treatment and syphilis spirochetes. When the body’s immune function is normal, or in the treatment of other diseases had irregularly used drugs related to the treatment of syphilis, produced a certain therapeutic effect, the body’s syphilis spirochete is limited to a certain extent (for example, cold medicine will make syphilis become recessive: the main culprit for the prevalence of recessive syphilis is the abuse of antibiotics. Penicillin is the most effective drug to kill the syphilis spirochete, and other antibiotics are also effective. Some people suffer from syphilis, buy some medicine to eat, the symptoms will be good; even some people happen to have a cold, eat a cold medicine syphilis symptoms can not be seen, but the body of the syphilis spirochete did not kill, turned into recessive syphilis); when the body at a certain stage of poor health, immune function is reduced, the syphilis spirochete can be taken advantage of the opportunity to a wide range of activities in the body and damage to a variety of tissues, the occurrence of overt syphilis. Gonorrhea: Sometimes it is also insidious. As we all know, when men get gonorrhea, most of them will have the symptoms of painful urination, frequent urination and pus in the urethra, which is very difficult for the patients and they have to go to the hospital in a hurry. However, a few patients do not have the above symptoms after being infected with gonorrhea. What’s more, about 60% of female gonorrhea patients do not have any symptoms. A region once did a survey on 701 diagnosed female gonorrhea patients, and found that the number of patients who did not have any clinical manifestations was as high as 548, accounting for 78.18%, which means that there are so many patients who do not know that they have got gonorrhea, but they can transmit the disease to healthy men through sexual contact. Non-gonococcal urethritis or cervicitis (genitourinary infections caused by chlamydia or mycoplasma): This disease accounts for about 35% of all STDs. In men, about 50% of non-gonococcal urethritis cases have mild or insignificant clinical symptoms and can be easily missed, and in women, more than 60% of patients have no symptoms at all. Although some of these patients do not necessarily require urgent treatment, they are, after all, infected with Mycoplasma or Chlamydia, and are therefore much more insidious.