男性不育症系指已婚生育期夫妻在女方各项有关生殖功能正常,且不采用避孕措施同居2年以上不育者。美国曾报道10%的夫妻不育,其中20～25%由男方引起。日本报道男性不育症占泌尿科新患病就诊总数的9.4%,同时认为此病出现逐年增加的倾向。 Male infertility refers to the married couple in the reproductive life of the woman about the normal reproductive function, and do not use contraception cohabitation more than 2 years of infertility. The United States has reported 10% of male and female infertility, of which 20 to 25% caused by the man. In Japan, male infertility accounts for 9.4% of the total number of newly diagnosed urological diseases in the country, and the disease tends to increase year by year.