Erectile dysfunction (ED) is the inability to get or keep an erection firm enough to have sexual intercourse. It's sometimes referred to as impotence, although this term is now used less often.

Occurs when a man can't get or keep an erection firm enough for sexual intercourse.

Erectile dysfunction can be a sign of a physical or psychological condition. It can cause stress, relationship strain and low self-confidence.

The main symptom is a man's inability to get or keep an erection firm enough for sexual intercourse.

Patients suffering from erectile dysfunction should first be evaluated for any underlying physical and psychological conditions. If treatment of the underlying conditions doesn't help, medication and assistive devices, such as pumps, can be prescribed.