Welding has a sperm-killing effect, certain men engaged in welding work, because of infertility to the hospital, careful questioning of medical history, found engaged in welding work. In the process of welding work, certain rays are produced, and the rays have a certain hindering effect on the production of sperm in men. If you are in the stage of preparing for pregnancy, do not engage in welding work, or change your job appropriately, and bring your preparation for pregnancy to a successful conclusion, then engage in welding occupation. Electric welding has a sperm-killing effect, and clinical X-ray examinations are done, which also have a sperm-killing effect. If the quality of sperm is not good, it is recommended that you can take appropriate supplements to improve sperm vitality and stay away from work environments that have an impact on sperm.