Erectile dysfunction (ED) is the most sensitive problem in man’s sexual life. ED affects the lives of many middle-aged and young men and their partners to one degree or another. Factors which can cause ED are diabetes, kidney disease, neurological disease, heart disease, vascular problems, surgery & trauma of prostate, bladder, spinal cord & pelvis, chronic alcoholism, smoking, obesity, avoiding exercise, drugs such as antihypertensive, antihistamines, antidepressants & tranquilizers. Psychological factors such as stress, anxiety, guilt, depression, low self-esteem and fear of sexual failure also play important role.