Infertility is called infertility when a couple has been without contraception for more than one year and has not conceived; infertility due to male factors is called male infertility. Primary infertility is a more common type of infertility in clinical practice, as the patient has never made his partner pregnant. The latest epidemiological survey data show that the quality of semen in Chinese men is decreasing at a rate of 1% per year, so the proportion of Chinese men with primary infertility is increasing. It is recommended to go to the hospital to clarify the cause and then carry out targeted treatment. During the preparation period, you should keep your mood happy and also pay attention to the nutritional intake and eat more protein-rich foods.