Erectile dysfunction can vary. It can involve a total inability to achieve an erection, an inconsistent ability to do so, or a tendency to sustain only very brief erections. Having erection problem from time to time isn't necessarily a cause for concern. However, if erectile dysfunction is an ongoing issue, it may cause stress, affect your self-confidence and contribute to relationship problems. Problems getting or keeping an erection can also be a sign of an underlying health condition that needs treatment and a risk factor for heart disease.
Male sexual arousal is a complex process that involves the brain, hormones, emotions, nerves, muscles and blood vessels. Erectile dysfunction can result from a problem with any of these. Likewise, stress and mental health concerns can cause or worsen erectile dysfunction.