Dear moms-to-be, have you ever refused an x-ray from your doctor? Do you shy away from the door of the X-ray room and walk around it? Have you ever been unable to sleep because you had an X-ray before you got pregnant? Pregnant, responsible for the health of the baby, many mothers will be on guard against all kinds of radiation damage around them, but as a diagnostic or therapeutic method of X-ray examination, will it really cause so much harm to us? “Beware of radiation, pregnant women stop” In the X-ray examination room outside the door we will see “pregnant women stop” warm reminder, which is to protect pregnant women, away from the radiation, to avoid injury. x-ray why can hurt pregnant mothers? This is because X-rays can change the state of atoms or molecules, leading to changes in cell function and genetic structure. Due to the growth and development of the fetus occurs in the process of a variety of genetically related life activities, fragile and susceptible, if pregnant mothers exposed to X-rays during pregnancy more than a certain amount, it will be a threat to the safety of the fetus, miscarriage, deformity, cancer are the possible results. In fact, it is not “one exposure will hurt” At this point, perhaps you are frantically recalling whether you have done X-ray examination during pregnancy. Have not done the best, have done, do not have to worry too much, because the X-ray can not be “a contact on the harm” of the killing power, whether or not to cause harm with the irradiation dose, irradiation site and receive irradiation of the pregnancy weeks related. 1, injury or not, depending on the exposure dose X-ray irradiation dose greater than 100mGy (10rad), the impact on the fetus is more serious, can lead to miscarriage, deformity, intellectual developmental disorders, etc., but usually diagnostic X-ray examination up to the dose, as long as you are not going to do a barium enema, continuous imaging of the small intestine and so on the examination is not a problem; and less than 50mGy (5rad) rays will not be general cause harm to the fetus, and if you have to take an X-ray, this dose and below is relatively safe. Here also want to tell you is that a variety of examination methods, radiation X-ray