Cytomegalovirus infection is relatively common in women of childbearing age. About 70% or more of women of childbearing age have been infected with cytomegalovirus, usually without clinical symptoms, except for a positive cytomegalovirus IgG test in the blood. Cytomegalovirus IgG positivity can be ignored in people with normal immune status and no requirement for childbearing, but it should be taken seriously in pregnant women who are planning to have children or are already pregnant. Because cytomegalovirus IgG has no protective effect, having been infected with cytomegalovirus, it can be detoxified asymptomatically. Cytomegalovirus can multiply in the body within lymphocytes in the blood, cervical epithelial cells, ureteral epithelial cells, and mammary duct epithelial cells, and is detoxified in vitro through cervical secretions, urine, and breast milk. For women of childbearing age who are planning to become pregnant, if they are cytomegalovirus IgG positive, they should be tested for the presence of cytomegalovirus in their blood, cervical secretions and urine, and if they have the virus, they should be treated with antiviral therapy first and wait until the test is free of virus replication before becoming pregnant. If a pregnant woman, she should also be tested for cytomegalovirus in blood, cervical secretions and urine because the virus in blood can be transmitted to the fetus through the placenta, and the virus in cervical secretions can also retrograde infect the fetus. If the virus is detected, counseling and, if necessary, prenatal diagnosis should be performed to determine if the fetus is infected with cytomegalovirus. If tested free of virus, it should be reviewed periodically because the chances of cytomegalovirus infection or detoxification increase with increasing gestation. Fetal development is also monitored by ultrasound. Because cytomegalovirus detoxification in vitro is intermittent, if urine is used to detect cytomegalovirus, urine should be left several times, specifically: 1. prepare a clean bottle for urine retention (pure water bottle); 2. leave 5-10mL for each urine solution in the prepared bottle (several times a day for urine solution, e.g. 5 times a day for urine solution); 3. for 72 hours (three days); 4. The urine was mixed in a bottle for three days; 5. The bottle with the urine was kept in the refrigerator. For mothers who are cytomegalovirus IgG positive, do not ignore the fact that cytomegalovirus can also be present in breast milk and should be tested for cytomegalovirus in breast milk. If the virus is present a consultation with a medical professional should be made to determine if breastfeeding is possible. The method of milk retention is: 1. prepare a clean bottle for milk retention (pure water bottle); 2. retain 2-3mL of milk in the prepared bottle each time (preferably more than 5 times a day); 3. the time is 72 hours (three days); 4. mix milk from multiple times in three days in one bottle; 5. store the bottle for milk retention in the refrigerator.