There is radiation associated with taking a chest x-ray. The principle of chest X-ray is to scan the chest. Compared to CT chest, chest radiographs have a lower radiation dose, but they do have radiation. Patients who are pregnant or preparing for pregnancy should try not to have this kind of examination containing radiation, but should choose other examination methods, because the fetus is sensitive to radiation, and if exposed to radiation during pregnancy, it will easily cause fetal malformation. When taking a chest X-ray, the doctor will protect other parts of the body that are not examined by bringing lead glasses, lead apron, etc., which can reduce the amount of rays the patient receives. Through the chest X-ray, if you suspect a problem, you can further have a chest CT to clarify it.