Infertility need to check many items, generally need both husband and wife comprehensive examination, such as whether there is no hereditary disease that can not bear children, the uterus, ovaries, testicles, whether there is primary disease, whether normal ovulation or ejaculation, the fallopian tube, the vas deferens is smooth, the quality of eggs and sperms is good or bad, it is recommended to go to the reproductive hospitals for a comprehensive examination. Generally healthy couples in normal sexual life without contraception conditions for more than a year without pregnancy will be considered infertility, if there is really infertility can identify the causes, etiological treatment or in vitro fertilization embryo transfer. Sometimes simple mental tension, depression, activity immediately after intercourse, excessive weight loss, etc. can also lead to infertility, it is recommended to relax, maintain adequate sleep, appropriate exercise to enhance physical fitness.