CT for men has a certain impact on having children, as follows. 1. CT belongs to radiation examination, which has a certain amount of radiation, and germ cells are more sensitive to radiation. If you want to have a child, it is recommended that you do not do any radiological examinations, such as X-ray and CT, within three months. This will help to ensure the quality of the sperm and at the same time the success rate of pregnancy is higher. 2. If during the preparation for pregnancy, the patient needs to do imaging tests because of certain diseases, according to the specific situation, you can choose some ways to replace it without radiation tests. Commonly, such as the abdomen can do ultrasound examination, head can choose the MRI examination, etc., try to avoid ray examination. Warm tips: in the preparation for pregnancy should be appropriate exercise, enhance personal physical fitness, at the same time need to quit smoking and alcohol, non-essential should reduce exposure to radiation.