In the clinic, we often encounter couples suffering from infertility who are very frustrated if one of them is found to have certain problems and only one of them is treated for a long time without results. In fact, although reproductive medicine has advanced rapidly in recent years, there are still many factors that cannot be determined for infertility, and the current tests cannot explain all the phenomena, and clinically, the proportion of couples with reproductive disorders together is increasing, which means that there is more possibility of both spouses having low reproductive function. Therefore, the key to successful treatment is to investigate and treat both men and women together. In my successful treatment cases, even if the problem is clearly in one partner, it is important to treat the other partner appropriately and in a timely manner. It is best to treat both partners as a whole.