Chest CT checkups once in a while generally have little effect on pregnancy, continue pregnancy and do a good pregnancy checkups, frequent chest CT checkups should be considered whether to continue the pregnancy, the specific need to comply with the doctor’s advice. CT is through the X-ray imaging, CT examination will have a certain amount of ionizing radiation, CT examination occasionally during pregnancy, the radiation dose is relatively small, the impact on the fetus is relatively small, you can continue to continue the pregnancy, regularly do a good job during pregnancy and obstetrics, the examination of the absence of abnormality do not have to worry too much. Frequent CT examination during pregnancy, X-ray ionizing radiation will have damage to human genes, blood system, reproductive system, may increase the chance of fetal malformation, miscarriage, it is necessary to carefully consider whether to continue the pregnancy. Continuing the pregnancy should be accompanied by proper maternity testing, such as Down’s syndrome screening, 4D ultrasound, amniocentesis, etc., in accordance with the doctor’s instructions. In addition, after pregnancy, do a good maternity test, try not to do harmful tests.