Impotence is the most common male sexual dysfunction disease, referred to as ED. It refers to the inability of a man's penis to achieve or maintain a sufficient erection during sexual intercourse, and the inability to complete a satisfactory sexual life, and the course of the disease lasts for more than three months. The main manifestations are slow or difficult erections at the beginning of sexual intercourse; sometimes, although an erection occurs, the erection is not hard enough, resulting in difficulty in insertion or even inability to insert the vagina. Impotence is usually associated with cardiovascular disease, hyperlipidemia, diabetes, hypothyroidism, androgen deficiency, hyperprolactinemia, hyperestrogenemia, obesity, long-term heavy smoking, alcoholism, lack of exercise, etc. With the increase of age, the incidence of impotence gradually increases, and the incidence of impotence exceeds 50% in adult men over 40 years old. At present, it is preliminarily divided into three categories: psychological, organic, and mixed.