You should judge whether you can wear a bra for chest X-ray according to the material of the bra, as long as there is no metal material in the bra, or some highly absorbing ray substance, you can wear it. Chest X-ray is to irradiate the human body with X-rays, and according to the structural characteristics of different organs and tissues, the absorption of X-rays is different, and according to the brightness and darkness of the result, it can be judged whether or not there is any lesion in the tissues. If there are metal substances in the bra, or substances that absorb X-rays more highly, such as bone jewelry, etc., it will interfere with the results, thus making the results inaccurate or unable to determine whether there are lesions in the tissues; if the bra is made of cotton, it can be worn normally and will not affect the results. X-rays have a certain degree of damage to the human body, it is recommended not to do multiple examinations within a short period of time.