Wearing a silver bracelet when doing a CT examination of the lungs has little effect, but try not to wear jewelry. CT examination, if you wear metal jewelry in the examined area, when doing the scanning will produce metal artifacts, interfering with the image, affecting the quality of the image, affecting the diagnosis of the doctor to watch, and bringing disadvantage to the diagnosis. If the jewelry worn is not in the area being examined, such as a bracelet when doing a lung CT scan, the effect is generally minor. If it is wearing a necklace, or a woman’s bra with a steel ring inside, there will be obvious artifacts, failing to meet the radiological quality control requirements and affecting the examination results. Therefore, before the CT examination of the lungs, try to remove all jewelry, especially women’s underwear can not carry metal objects, it is best to change into a special dress for the time of the radiation, so that the examination out of the picture is clearer, and help diagnosis. CT examination is radioactive, it is not recommended for those who are preparing for pregnancy, breastfeeding or during pregnancy.