Erectile dysfunction (ED), or impotence, is the inability to achieve or maintain an erection during sexual performance. ED occurs when not enough blood flows to the penis, preventing an erection. Studies have shown that most cases of ED, which affects nearly 30 million men, are caused by physical health problems.
Erectile dysfunction is not a disease in and of itself, but rather a symptom of an underlying condition such as diseases that affect blood flow, psychological factors, chronic diseases, and certain medications
There are no formal tests to diagnose erectile dysfunction; however, there are tests to determine underlying causes
A number of treatments for erectile dysfunction exist.
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