ED can happen: Most often when blood flow in the penis is limited or nerves are harmed. With stress or emotional reasons. As an early warning of a more serious illness, like: atherosclerosis (hardening or blocked arteries), heart disease, high blood pressure or high blood sugar from Diabetes.

What is the main cause of impotence?

Erections mainly involve the blood vessels. And the most common causes of ED in older men are conditions that block blood flow to the penis. These include hardening of the arteries (atherosclerosis) and diabetes. Another cause may be a faulty vein that lets blood drain too quickly from the penis.

Can impotence be cured?

In summary. So erectile dysfunction can be cured, but it depends on the cause. Some causes of ED are easier to “cure” than others. But, with the right diagnosis, support, and treatment, it's possible for ED to go away without the need for ED medications like Viagra (sildenafil) or Cialis (Tadalafil).