Erectile dysfunction (ED) refers to men in more than three months, whenever under sexual stimulation, including visual, olfactory, tactile, auditory and sexual fantasies, etc., the penis can not erect during sexual intercourse, or erection but not firm, or erection can not be maintained long enough to complete satisfactory sexual intercourse is called erectile dysfunction, Chinese medicine called “yang atrophy”. A. Etiology ED etiology can be divided into psychological, pathological and mixed three categories. Psychological See in the work tension, economic pressure, career frustration, social and interpersonal tension, mental depression, the penile erection center in a state of repression; or the couple’s feelings and lack of communication, lack of sexual passion to cause erection, it is also difficult to produce sexual desire; or the experience of failed sexual intercourse to produce sexual anxiety and fear, fear of failure again, the more afraid the more can not erect. In addition, sexual stimulation is inappropriate and insufficient, it is also difficult to cause an erection. Pathological Caused by disease, common endocrine such as testicular atrophy due to trauma, inflammation, pituitary tumors, radiation therapy, hyper- or hypothyroidism. Neurological ED such as Parkinson’s disease, spinal cord trauma, surgery or pelvic fracture causing injury to the pelvic nerve, chronic alcoholism, diabetes, drug addiction, etc. can cause peripheral neuropathy and ED. atherosclerosis, inadequate blood supply to the penile arteries can cause erectile insecurity, or failure to erect; small arteries in diabetic patients can also cause lesions leading to ED; sympathetic hyperfunction causes abnormal smooth muscle function. Long-term use of many drugs can cause ED, such as antipsychotics, antidepressants, hypoglycemic drugs, antihypertensive drugs, estrogen, ranitidine, anti-epileptic drugs, digoxin. ED-related lifestyle habits include: long-term smoking, alcohol and drug abuse, solitary, etc. Mixed Both physical dysfunction and psychosomatic factors, the most common clinical. Because pathological ED for a long time, if not timely and effective treatment, the patient is bound to have heart pressure, aggravating the degree of ED, lifting the patient’s psychological burden before the first-line drug therapy is difficult or ineffective. In addition, the clinical so-called psychological ED in a comprehensive examination before it is difficult to exclude the presence of cardiovascular pathologies such as endothelial dysfunction, metabolic disorders. In addition age is also the strongest independent factor in ED-related risk factors. Second, the diagnosis ED is one of the main diseases affecting male reproductive health, directly affecting male self-esteem and psychological health, damage to the relationship between husband and wife and family stability, become a lot of adult men’s unspeakable problems.