Erectile dysfunction is the persistent inability of the penis to achieve or maintain sufficient erection to complete sexual life. Penile erection is the result of blood congestion in the corpus cavernosum of the penis, which is mainly affected by neurological, vascular, endocrine as well as psychological factors. Meanwhile, smoking, alcoholism, lack of exercise, irregular sex life, obesity, diabetes mellitus, and Benign Prostatic Hyperplasia (BPH) can also cause erectile dysfunction. Patients suffering from erectile dysfunction, the penis can not be erected under any circumstances, even if the penis can not be erected during sexual arousal, often combined with other sexual dysfunctions, such as premature ejaculation, decreased libido, ejaculation abnormalities, no orgasm. It is recommended that patients go to the hospital in a timely manner, under the diagnosis of the doctor, according to the patient’s specific condition, to take targeted treatment, life should pay attention to psychological care, and improve the bad habits.