Impotence Impotence — the inability to achieve or maintain an erection suitable for sexual intercourse — affects 20 million American men, or about 10% of the entire male population, and 35% of men over the age of 60. Diagnosis To diagnose impotence, your doctor will conduct a complete physical exam, along with some psychological screening and an evaluation of your hormone levels. Treatment There are many possible treatments for impotence, including Medication Hormones Urethral suppositories Self-injection therapy Vacuum devices Constriction bands After an examination and diagnostic testing, your doctor will help you decide which treatment is best for you.