Do you have to do the four tests for eugenics? The four tests of eugenics mainly check whether there are four viruses in the mother's body: Toxoplasma gondii virus, rubella virus, cytomegalovirus and herpes simplex virus. In British and American medical circles, the word TORCH consists of the first one or two letters of the English names of these four viruses, so this test is also called TORCH test abroad.
1. Toxoplasma gondii virus infection rate is high in domestic pets. 60% to 80% people in the general population have been infected with Toxoplasma gondii virus, and the infection rate of people who have cats and dogs at home is higher. If a woman becomes pregnant without treatment after infection, the probability of repeated abortion is higher than that of ordinary people. In the 1980s, a domestic survey found that the abortion rate of women infected with Toxoplasma gondii virus during pregnancy was about 10%, which may lead to hydrocephalus, cerebellar malformation, central nervous system dysplasia and other problems in the fetus.
2. The infection rate of rubella virus in women of childbearing age is 84%. Rubella virus is transmitted through respiratory tract. In Guangzhou, the overall infection rate of rubella virus among women of childbearing age is as high as 84%, and the infection rate of pregnant women is 3.6% every year. Adults infected with rubella virus often do not feel unwell, or only have nonspecific symptoms like colds, which are relatively hidden. Moreover, rubella virus infection is more likely to occur in cold season, so even if there is some discomfort, it is easy to be regarded as a common cold. If the fetus is infected, it may lead to congenital developmental malformations such as congenital cataract, eye defect, ear defect, deafness and microcephaly. Chen Dunjin introduced that the United States tracked more than 30,000 pregnant women infected with rubella virus and found that 20,000 of them were born with congenital malformations. Guangzhou once injected a group of junior high school girls with rubella virus vaccine, hoping that they could develop immunity before having sex for the first time, but found that the protection rate was only 85%-90%, which could not completely prevent re-infection during pregnancy.
3. Cytomegalovirus can be transmitted through urine and feces. Cytomegalovirus is the virus with the most complicated molecular mechanism discovered by human beings. So far, there is no corresponding vaccine. The incidence of infection in China is as high as 95%, and the active infection rate of cytomegalovirus during pregnancy is about 5%. "This may be related to the fact that China people only attach importance to the' entrance' but not to the' export'. Cytomegalovirus is mainly transmitted through respiratory tract and also exists in urine and feces of infected people. If you are exposed to feces containing viruses and come into contact with your mouth and nose, you may be infected. " Clinically, it is found that the proportion of pregnant women with active cytomegalovirus infection is about 5%, of which 1/3 will cause neonatal infection, and 1/3 infected newborns will have hypoplasia of brain, central nervous system and retina. 4. Herpes simplex virus can cause abortion, premature delivery and deformity. Herpes simplex can be divided into type I and type II, and 70% to 80% of adults have been infected with herpes simplex virus. Most people are infected with type I, which occurs outside the reproductive organs and has little teratogenic effect on the fetus; Herpes simplex virus type II infection in reproductive organs may have a much greater impact on the fetus, which can induce abortion, premature birth, stillbirth and deformity.
The four inspection items of eugenics are abbreviated as TORCH in English, covering Toxoplasma gondii inspection, cytomegalovirus inspection, herpes simplex virus inspection and rubella virus inspection. In fact, there is no specific time limit, but if you have pets at home, such as cats and dogs, it is recommended to do four torch tests before pregnancy; Or both husband and wife have been infected with herpes simplex virus or even genital herpes virus, it is recommended to have a pre-pregnancy examination. Four excellent students are mainly accomplished by women. Generally, the examination should be done before 12 weeks, and the flashlight examination should be done before early pregnancy.
The four tests of eugenics are Toxoplasma gondii, rubella, giant cell and herpes simplex. Pregnant couples can choose to check within three months before pregnancy, and pregnant mothers can also check within two and a half months after pregnancy. You can choose one or more tests according to your actual situation.
The four tests of eugenics are to check whether there are various virus infections in women, mainly including Toxoplasma gondii, rubella virus, cytomegalovirus and herpes virus. The cost of the four tests for eugenics is usually between 70 and 80 yuan, and there will be some differences in the cost of each hospital category. It is suggested to take venous blood on an empty stomach when doing the four tests of eugenics, mainly to check whether there is virus infection, because virus infection may affect pregnancy, and it is easy to have embryo abortion or spontaneous abortion after pregnancy. It is recommended that pregnant women do four routine eugenics tests before pregnancy.