• Erectile Dysfunction (Impotence) - Introduction
• Highlights
• Causes
• Risk Factors
• Diagnosis
• Treatment
• Oral Medications (PDE5 Inhibitors)

Introduction

Erectile dysfunction (formerly called impotence) is the inability to achieve or maintain an erection sufficiently rigid for sexual intercourse. Sexual drive and the ability to have an orgasm are not necessarily affected. Because all men have erection problems from time to time, doctors consider erectile dysfunction to be present if attempts at intercourse fail at least 25% of the time.

Erectile dysfunction is not new in either medicine or human experience, but it is not easily or...