In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Erectile dysfunction ( also known as ED or " ( male ) impotence " ) is a sexual dysfunction characterized by the inability to develop and / or maintain an erection .
Erectile dysfunction is also known as ED , impotence or male impotence .