Erectile dysfunction (ED) affects millions of men every year and can significantly impact your sexual relationships and affect your sexual health. An erection occurs when sexual stimulation and excitement causes blood to flow into the penis. When the blood flow to the penis is blocked, erectile dysfunction may occur. There are several causes of ED, including high blood pressure, high cholesterol, psychological factors, certain cardiovascular diseases, and more. An underlying health condition is often to blame for ED symptoms. The good news is there are many ED drugs available to improve blood vessel dilation and help to overcome ED symptoms. Read our articles below to learn more about erectile dysfunction symptoms, causes, treatment options, and more.