Accidental X-ray examination in the third week of pregnancy has a small probability of triggering fetal malformation, and timely medical attention is recommended to observe the fetal condition. Receiving radiation in early pregnancy may trigger adverse conditions such as embryonic arrest, congenital organ abnormalities, fetal growth restriction, etc. However, a higher radiation dose is generally required. Although X-ray examination has a certain radiation dose, the radiation dose generated by an occasional X-ray examination is much lower than the dose that causes malformation or disability in the fetus, therefore, although there is a risk of malformation, the probability is low. Pregnant women who have undergone X-ray examination during the third week of pregnancy are advised to strengthen observation during subsequent pregnancies, adhere to routine pregnancy checkups, and seek prompt medical treatment once symptoms of discomfort or abnormalities are detected during the examination.