The National Institutes of Health has estimated erectile dysfunction (ED) affects as many as 30 million men in the United States (18 million men over the age of 20), 75 percent of which do not seek treatment. We get it, guys: you’re embarrassed and don’t feel comfortable addressing the issue with your doctor, let alone your partner. But you need to know treatment is available. And we’re not talking about the little blue pill. Viagra and similar medication won’t cure ED if the underlying cause isn’t treated first.