Chest X-rays themselves are not harmful to the body as a whole, and are judged clinically by the radiation dose and the radiation threshold. Chest X-ray may cause some damage to the body, the corresponding damage mainly comes from X-ray radiation. However, the effect of radiation on the human body needs to reach a certain threshold, the radiation dose of chest X-ray itself is very low, routine screening almost does not cause damage to the body, from the clinical point of view do not need to worry. Generally speaking, X-rays are not harmful to the body and can be used for routine checkups. However, people who are pregnant should try to avoid doing related examinations, as cell division is more active during the embryonic period, which is relatively more sensitive to radiation damage. If you have had a chest X-ray during pregnancy, you need to regularly check the condition of the fetus through ultrasound and Down’s syndrome, and deal with any abnormalities in time. If you need to undergo chest X-ray, please consult the hospital in time, choose the appropriate examination method under the guidance of the doctor, and take appropriate protective measures to avoid adverse consequences.