Erectile dysfunction (ED) happens when a man has ongoing problems getting and keeping an erection. Without treatment, ED can make sex difficult. The problem is reported by 1 in 5 men, and that number gets bigger with age.
Men can have several types of issues including poor sex drive and problems with ejaculation. But ED refers specifically to trouble getting or keeping an erection. You might have a healthy sex drive, but a body that won't respond. Most of the time there is a physical basis for the problem.
You've probably heard of Viagra. This work for improving blood flow to the penis during arousal https://www.edrugstore.com/. They're generally taken 30-60 minutes before sexual activity and should not be used more than once a day. Viagra require an OK from your doctor first for safety.