What are the dangers of varicocele in men? Is it true that varicocele in men can cause infertility? The early symptoms of female infertility are stone-cold women, no menstruation, irregular menstruation, uterine cold, body cold and other physical symptoms. So what are the causes of infertility in men? The causes of male infertility can be summarized into 5 categories: ① Sexual dysfunction includes impotence, premature ejaculation, seminal emission, and non-ejaculation, etc. The causes in this category can be divided into two categories: psychoneurological and organic lesions. According to relevant information, in every 8 married men there is 1 man suffering from different degrees of sexual dysfunction, currently there are about 50 million male sexual dysfunction patients in China, the incidence rate of up to 10%. According to domestic reports, oligospermia accounts for 15.4% of male infertility, the second cause of male infertility after ejaculation; ③ male infertility caused by varicocele, 12.1% of the data published by the World Health Organization; China’s data for 6%; ④ immunological factors, refers to the presence of anti-sperm antibodies in the serum or seminal plasma of men, producing their own anti-sperm immune response; resulting in immune ⑤ Infections of the reproductive tract, congenital anomalies, systemic diseases and unexplained infertility. The causes of female infertility can be summarized into four categories: ① ovulatory dysfunction, which is manifested by the absence of ovulation during the menstrual cycle or the incompetence of the corpus luteum after ovulation despite the presence of ovulation; ② congenital abnormalities in the development of reproductive organs or acquired pathologies of reproductive organs, which obstruct the smoothness and function of the reproductive channel from the vulva to the fallopian tubes and prevent the sperm from meeting the egg, resulting in infertility; ③ immunological factors, which refer to the presence of anti-sperm antibodies in the female reproductive tract or the serum, resulting in infertility. (3) Immunological factors, which refer to the presence of anti-sperm antibodies in the female reproductive tract or serum, resulting in an allogeneic anti-sperm immune response, causing sperm to agglutinate, lose vitality or die, leading to infertility or sterility. Infertility accounts for about 1/3 of the causes of infertility.