The incidence of male infertility is about 10%. Among them, the female factor alone is about 50%, the male factor alone is about 30%, and the total male and female factor is about 20%. Clinically, male infertility is divided into two categories: sexual dysfunction and normal sexual function. The latter can be further divided into azoospermia, oligospermia, weak spermia, sperm incompetence and sperm count normal infertility based on semen analysis results. In addition to congenital testicular malformations and dysplasia, the external potential hazards of male infertility are men’s underwear, which are often easily overlooked. The contraction of the scrotum is designed to regulate the temperature of the testicles about 2 degrees below body temperature, and the testicles are only about 2 degrees below body temperature to facilitate the secretion of testosterone to an optimal state. Testosterone is an important substance that promotes sperm production. Now the popular tight-fitting men’s underwear, generally in front of the design is a double layer, the scrotum and penis wrapped together for a long time, resulting in the crotch long-term in a hot and humid environment, becoming a breeding ground for viruses and bacteria. The long term high temperature and humidity of the crotch is a potential risk for common male diseases such as prostatitis, varicocele, vesiculitis and scrotal eczema. Prostatitis, varicocele and vesiculitis are common diseases of male infertility. So experts recommend wearing more air permeable, breathable, heat dissipating and isolated scrotal bag underwear to keep the crotch dry and breathable for a long time to dissipate heat. In terms of the current patient situation, the number of infertility patients is increasing, many patients because of the lack of medical knowledge, without systematic examination, they blindly use drugs, many times the clinical efficacy will be very general, once again appeal to the medical station line of workers and patients, infertility patients are not simply a few pairs of Chinese herbs to complete the task, such patients to check the main, to find out the cause of the disease before using drugs, even if it is idiopathic infertility, but also It is important to do a systematic examination to prevent taking a bigger detour.