At present, the commonly used drugs in clinic are testosterone, and testosterone is one of the most important androgen components secreted by human testis. Therefore, it is a good treatment for patients with some clinical manifestations due to the decrease of androgen level. These patients often have erectile dysfunction, slow erection, short hardness maintenance time or premature ejaculation. In some patients, due to the low level of androgen, sperm motility and sperm viability may even decrease, which may affect the fertility of patients. Taking testicular tablets can also improve sperm vitality to a certain extent. More patients actually have psychological and mental manifestations, depression, anxiety, etc. because of the decline of sexual function or obstacles. Taking testosterone tablets can also relieve the clinical manifestations such as mental weakness, mental anxiety and depression caused by the decline of androgen level. Some men's testosterone supplementation may improve their sexual function, and the lack of testosterone level is one of the reasons for the decline of sexual function, especially for some middle-aged and elderly people, which may lead to the decline of erectile function and sexual desire. If it is androgen deficiency, testosterone or androgen can be supplemented to improve its sexual function, and at the same time, it can also improve some symptoms of his body, such as fatigue, bad temper, poor sleep, loss of appetite, decreased sexual desire and so on. At the same time, it can improve its sexual function, which is often encountered in clinic. Of course, some men simply supplement testosterone, which may not obviously improve their sexual function. At this time, some pd five inhibitors, commonly known as Viagra, can be used together to directly improve a man's sexual function and help him have a better sex life to improve his sexual function.