X-ray is a certain amount of radiation, but this radiation is within the safe range. According to statistics, no more than 5,000 times a year X-ray film, basically no impact on the body. Many normal medical workers in the X-ray surgery, there is a certain amount of radiation, but basically does not affect the health of the human body, CT is also X-ray, its radiation is relatively higher than the ordinary film will be some, but the regular examination basically does not affect. But for pregnant women are not able to carry out these two examinations, need to prevent the growth and development process of cell mutation and cause malformations. There is no clear evidence to support that the lesion is caused by the examination, so you can rest assured that there is no need to be alarmed.