Learn about the symptoms and causes of erectile dysfunction (ED). ED may be a symptom of another health problem. Emotional issues may cause or make ED worse. What is erectile dysfunction? Erectile dysfunction (ED) is a type of penile disorder. It affects your ability to get and maintain an erection firm enough for sexual intercourse. What is erectile dysfunction? WebMD's pictures explain the symptoms, causes, and treatments, including medicine and alternative approaches, for impotence. Everything you need to know about erectile dysfunction (ED) including what causes ED, symptoms of ED, and what treatments and ED pills are available. In this video, we'll cover the basics of erectile dysfunction. What is it? Who gets it? The symptoms, diagnosis, and the treatments. Whether you're looking for answers for yourself or for someone you love, we're here to give you the best information available. Erectile dysfunction (ED), also referred to as impotence, is a form of sexual dysfunction in males characterized by the persistent or recurring inability to achieve or maintain a penile erection with sufficient rigidity and duration for satisfactory sexual activity. Erectile dysfunction is rarely the result of a single cause. Instead, it often arises from a combination of physical, psychological, and lifestyle factors. Understanding these causes is essential, both for effective treatment and for recognizing ED as a potential signal of broader health issues.