Whether the child can be born after CT examination in early pregnancy is related to the dose of radioactive substances endured during the examination, which mainly depends on the site of CT irradiation and fetal development. 1, for patients who undergo abdominal CT and chest CT examination in early pregnancy, the radiation dose of a single examination is low compared with the self-excited dose of the embryo, which usually does not have significant effects on the fetus and the pregnant woman, but patients need to undergo NT examination in the middle and late pregnancy However, patients need to undergo NT examination, Tang screening, 4D ultrasound and other examinations in the middle and late pregnancy to clarify whether there are chromosomal abnormalities or malformations in the fetus; 2. If patients undergo pelvic CT examination in early pregnancy, it may have a greater impact on the development of the embryo and may risk fetal chromosomal abnormalities and fetal malformations, and it is not recommended to continue the pregnancy from the perspective of eugenics, if they need to continue the pregnancy, they must do a good job of screening for fetal chromosomal abnormalities and fetal malformations. If these tests are okay, you can have the baby. Therefore, if the dose of CT in early pregnancy is small and the irradiation site is in the chest and abdomen, the fetus can be observed first and will not be affected in general. Patients who have undergone pelvic CT also need to be monitored more closely. If the fetus is found to be delayed or malformed, it is recommended to terminate the pregnancy in time and prepare for pregnancy again when the body recovers.