Recently, a 34-year-old male patient, Mr. Wang, was treated for a sperm malformation rate of 99%. Mr. Wang, a computer engineer by birth, works on average more than 10 hours a day in computer design, and has been unsuccessfully trying to have a second child with his lover. At present, it is the peak period of childbirth after the liberalization of the “comprehensive two-child” policy, how should male friends do a good job to prepare for pregnancy in order to improve the probability of conception, and the eugenics? High doses of radiation can cause structural changes in the testes and increase the rate of sperm malformation. For men high doses of radiation can cause changes in testicular tissue structure, increase the rate of sperm malformation, and reduce important indicators such as sperm count and sperm density. This year, 34-year-old Mr. Wang suffered such a thing, computer engineer born Mr. Wang, daily engaged in computer design work an average of more than 10 hours, because of the preparation of the second child a year unsuccessful to the hospital, after examination of sperm density and vitality is normal, sperm deformity rate is as high as 99%, was diagnosed with deformed spermatozoa.