育龄夫妇婚后同居，性生活正常而未避孕者，大多在1年内怀孕。若超过一定时间未孕称不孕。其时限国际妇产科联合会定为2年，美国不孕学会定为1年。不育症在临床上并不少见，国外资料为10％～15％。其中35％～40％不孕（育）症的原因在于男方。1病因男子不育是很多疾病或因素造 Couples of childbearing age living together after marriage, normal sexual life without contraception, mostly within 1 year of pregnancy. If more than a certain period of pregnancy, said infertility. The time limit International Federation of Obstetrics and Gynecology for 2 years, the United States Institute of Infertility for 1 year. Infertility is not uncommon in clinical practice, foreign information is 10% to 15%. 35% to 40% of infertility (infertility) disease is due to the man. An etiology of male infertility is caused by many diseases or factors