It's frustrating, embarrassing and depressing. Your sexual partner may have become distant or indifferent, thinking that you have lost interest. You wonder what you did to deserve this.

This is male impotence, or more accurately, erectile dysfunction (ED). It's when you're unable to get or keep an erection that's firm enough, or lasts long enough, to have successful sexual intercourse. It can have serious effects on your sexual relationship and your self-esteem.

If you suffer from ED, you are not alone. Approximately 94 million men worldwide are affected by ED. The good news is that it's treatable. Today nearly every man who has ED can be helped.

Within this section, we will explore possible causes and options to help resolve ED. If you are suffering in silence, understanding the prevalence, possible causes and treatment options may encourage you to seek help for your situation.