Harvard Men's Health Watch

Not satisfied with your sex life?

ed-mens-health-sex-life-erectile-dysfunction
Image: Thinkstock

Erectile dysfunction is common, but it's not always the problem. A doctor can help you get to the bottom of it.

Erectile dysfunction (ED) is difficulty either getting or maintaining an erection firm and lasting enough for a satisfying sexual encounter. The most common cause is inadequate blood supply to the spongy tissues in the penis that provide rigidity. That's a straightforward "plumbing problem" that can usually be treated with medication. But there are other possible causes, too.

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