A detailed medical history may reveal that the disorder is due to a chronic disease such as atherosclerosis, hypertension or diabetes mellitus. Inquiry about decreased libido and symptoms of hypothyroidism or hyperthyroidism may reveal a reversible cause (Table 1).5-7 free samples viagra buy viagra without prescription online A pump, which draws air out of the cylinder; and An erection problem is the inability to get or maintain an erection that is firm enough for a man to have satisfactory intercourse. You may be unable to get an erection at all, or you may lose the erection during intercourse before you are ready. If the condition persists, the medical term is erectile dysfunction. Diabetes increases the risk of erectile dysfunction by two to three times compared to not having the disease. ED is seen as an early symptom of diabetes.