Male sexual dysfunction includes sexual desire disorder, erectile dysfunction and ejaculation disorder, which are all symptoms caused by male sexual dysfunction. The symptoms of erectile dysfunction are mainly divided into three types, one is the inability to get an erection, the other is the inability to maintain an erection for a long time, and the other is the ability to get an erection, but the hardness is not enough to achieve satisfactory sexual intercourse. The inability to get an erection means that the penis cannot complete the blood filling process after sexual stimulation and is in a completely weak state. The erection is not maintained for a long time means that the erection can be normal after sexual stimulation, but cannot last for a long time. Another symptom of sexual dysfunction is ejaculation disorder. In this process, the penis can maintain a normal erection and the erection lasts for a long time. However, after a long period of sexual intercourse, ejaculation cannot be completed. This can lead to a person’s fatigue, penile pain, and some other complicating symptoms. In addition, ejaculation disorders include common premature ejaculation, retrograde ejaculation and lack of sexual pleasure. Male sexual dysfunction can also result in abnormal erection of the penis which in turn affects normal sexual life. In normal people, the penis becomes engorged with blood only after sexual stimulation through a series of complex neuro-vascular regulatory mechanisms, resulting in an erection. Abnormal penile erection is an involuntary prolonged erection of the penis that does not weaken in the absence of sexual stimulation. This condition is harmful and prolonged erection may lead to prolonged penile engorgement and the problem of cavernous necrosis. The symptoms of sexual dysfunction include penile erectile dysfunction, ejaculation dysfunction and symptoms of abnormal erection, etc. The appearance of these conditions requires patients to seek timely medical attention in order to be well treated.