The idea of “raising children for old age and passing on the family name” is deeply rooted in Chinese cultural thinking. With the penetration of Western culture, this concept has changed, but for our men who cannot have children naturally, the issue of offspring is still a heavy burden on their minds. According to survey results released by the China Population Association, there are now more than 40 million infertility patients in China, with an average of one in seven couples unable to have children. And it is worth noting that the current trend of infertility due to male causes is on a steep rise, and has been comparable to the proportion of female infertility. In order to cope with the increasingly serious infertility condition, checking the cause of infertility should become a “top priority” for patients. As the saying goes, “prescribe the right medicine for the right disease”, only after finding out the cause of the disease can the doctor give a reasonable and appropriate treatment plan to help the patient get rid of infertility. The causes of infertility are many and varied, so after the patient learns that he or she is suffering from infertility, what medical history should you tell the attending physician so that he or she can make a more accurate judgment of you? 1.History of disease: Patients should provide their primary care physician with a thorough medical and reproductive history designed to allow the physician to explore all elements of the patient’s infertility-related history, which is key to evaluating male infertility. It is important to note that patients should not only emphasize their own detailed medical history, but also pay attention to gathering information about the fertility status of the female partner and the extent of the couple’s fertility efforts. 2. Sexual and reproductive history: Patients should inform the doctor of the duration of infertility and previous fertility, including details of previous pregnancies. The patient should record the frequency of intercourse and masturbation, as well as the duration of intercourse. This will help the doctor determine whether the couple is scheduling sex according to ovulation and whether they are having intercourse in an effective way to improve their chances of conception. Because sperm can survive in the cervical mucus and cervical canal for 48 hours or more, the timing of intercourse does not have to match exactly the time of ovulation. However, most experts recommend having intercourse once every 2 days close to ovulation to ensure that sperm remains in the female reproductive tract and fertilizes the egg during the critical 12-24 hour period when it is released. You can also project this yourself: try to schedule 2-3 sexual encounters in the 5-day period around the penultimate 18th – 14th day before your next period, which is very good for fertility. However too much sex may lead to an insufficient number of sperm in the vagina, and conversely, too little sex may miss ovulation.