Does syphilis incubation period have a symptom for many years?

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Syphilis as a venereal disease, the harm is very huge, patients infected with syphilis for various reasons, but do not dare to see a doctor, this fear of syphilis, in fact, escape is useless, should actively face the disease, the following to introduce the latent period of syphilis for many years without symptoms?, To help you better understand syphilis.

Does syphilis incubation period have a symptom for many years?

1. Dark field microscopy is a method to examine Treponema pallidum. Dark field, as the name suggests, means that there is no bright light under the microscope, it is easy to check the pale spirochete. This is a pathogen test, which is of great significance for the diagnosis of early syphilis. Leptospira pallidum can be found in the early stage of skin and mucous membrane damage. Treponema pallidum of primary syphilis mostly exists in the hard nodes of chancre, the secretion and exudate of ulcer, and the enlarged lymph node puncture can also be detected. Treponema pallidum of secondary syphilis can be detected in blood and tissue. In early congenital syphilis, pallidum pallidum can be found by scraping the skin or mucous membrane. Recently, amniotic fluid of pregnant women was obtained by amniocentesis, which can be used as a dark field microscope for the diagnosis of congenital syphilis.

2. Syphilis serological test syphilis serological test includes non Treponema pallidum serological test and Treponema pallidum serological test. The former is often used in clinical screening and judging the effect of treatment. The results can be obtained one hour after blood drawing, and the cost is also low. The latter is mainly used to determine the test, but it can not determine the therapeutic effect, once suffering from syphilis, the test will be positive for life. (1) non Treponema pallidum serum test the antigen of this kind of test is divided into the suspension of cardiolipin, lecithin and cholesterol, which is used to detect anticardiolipin antibody. Because these tests have the same standardized antigen, the sensitivity is similar. There are three commonly used methods: (1) VDRL; ② Serum unheated reagin slide test (USR); ③ Rapid plasma reagin ring card test (RPR). It can be used for clinical screening, quantitative analysis and curative effect observation. (2) Treponema pallidum serum test includes: ① fluorescent Treponema pallidum antibody absorption test (FTA-ABS); ② Treponema pallidum hemagglutination test (TPHA); ③ Treponema pallidum immobilization test (TPI). This kind of test has high specificity and is mainly used for diagnostic test.

3. Molecular biology detection has developed rapidly in recent years, and PCR technology is widely used in clinic. The so-called PCR is polymerase chain reaction, that is, amplifying the selected DNA sequence of spirochete from the selected material, so as to increase the number of copies of the selected DNA of spirochete, which can facilitate the detection with specific probes, so as to improve the diagnostic rate. Some small clinics often follow the fashion, hang a PCR laboratory brand, eat and drink together, can only be self deception. In fact, the diagnosis of syphilis does not have to do PCR, for the general blood test can be.

matters needing attention

In short, understanding the method to determine the incubation period of syphilis can effectively avoid the severity of syphilis, so as to reduce the impact on us.