Erectile dysfunction means not being able to get and keep an erection firm enough for sexual activity. It also is called impotence. Having erection trouble from time to time isn't always a cause for concern.

Context Explanation

But if erectile dysfunction is ongoing, it can cause stress, affect self-confidence and add to challenges with a partner. For most men unable to obtain or sustain an erection, it can be embarrassing to even utter words—erectile dysfunction. Also known as “impotence,” erectile dysfunction (ED) is defined by the Mayo ...