Are preconception tests necessary? What does it mean for the pregnant woman and her future child? A good preconception and pregnancy checkup is an important part and the first line of defense in preventing birth defects. That’s why it is the real starting line for your child. What items are usually included in preconception checkups and what is their significance? 1, general examination: including general physical examination such as height, weight, blood pressure, gynecological examination, male examination, and blood routine, liver and kidney function, urine routine, electrocardiogram, gynecological ultrasound, white belt routine, etc.. These many patients in the routine daily physical examination are included; 2, five: for example, which (toxoplasma) infection can lead to fetal hydrocephalus, microcephaly, anencephaly, retinal chorioretinitis (even blindness), hepatosplenomegaly, polycystic kidney, adrenal gland defects and other adverse pregnancy outcomes; congenital (cytomegalovirus) infection can cause fetal head malformations, cataracts, retinitis, deafness, bile duct malformations, intellectual Developmental disorders, etc.; 3. STD series: including such as syphilis, AIDS, etc. Infection with STDs may lead to miscarriage, intrauterine death, premature birth or infection of the newborn during delivery; 4, mycoplasma chlamydia: mycoplasma chlamydia is widely present in nature, human immunity is reduced, they may reproduce the disease. Sexual life is also the main way of its infection, mycoplasma chlamydia can affect the viability of sperm, can infect fetuses and newborns, causing premature birth, stillbirth, low birth weight babies, neonatal meningitis, etc.; 5, thalassemia screening: a history of related diseases or family history, or Guangdong, Guangxi, Hunan, Hubei, Hainan, Sichuan, Chongqing, etc. couples of childbearing age are recommended to be screened. Thalassemia is the most common and harmful genetic disease in the southern provinces of China, with a population incidence of up to 10% or more, mainly in Guangdong and Guangxi. The disease occurs due to abnormal structure or abnormal rate of synthesis of the peptide chain of the peptide chain in the hemoglobin molecule, resulting in an imbalance of the peptide chain and producing a cluster of symptoms mainly hemolytic anemia; 6. Hepatitis B screening: pregnancy may cause consequences such as premature birth of the fetus, and the hepatitis virus can also be transmitted to the child through the mother-infant route. Therefore, pre-conception screening, if there is hepatitis B virus infection, then you can get pregnant under the guidance of a specialist. Other tests include cervical smears, oral examinations, and cardiac ultrasound, etc. Pre-conception women can choose tests according to their specific situation. Nowadays, we advocate that all couples of childbearing age should take the initiative to do preconception checkups, especially the following groups of people need to be examined: 1. those who have not been tested for marriage; 2. couples with a history of genetic diseases, chronic diseases or infectious diseases on both or one of them; 3. women over 30 years old; 4. couples with a history of bad births, such as habitual abortion, stillbirth, stillbirth and the birth of mentally retarded children; 5. couples who have not been vaccinated against hepatitis B; 6. couples who are working Exposure to undesirable factors, such as exposure to radioactive substances, chemical pesticides, harmful environments, etc.; 7. Bad lifestyle habits, such as long-term smoking, alcoholism, drug addiction, and partial diet; 8. Pet keepers.