Erectile dysfunction or impotence is a sexual dysfunction characterized by the inability to develop or maintain an erection of the penis for satisfactory sexual intercourse regardless of the capability of ejaculation. There are various underlying causes, such as diabetes, many of which are medically reversible. The causes may be physiological or psychological. Psychological impotence can often be helped by almost anything that the patient believes in; there is a very strong placebo effect. ...
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Coping skills
... Whether the cause of erectile dysfunction is physical factors or psychological factors or a combination of both, it can become a source of mental and emotional stress for a man — and his partner...
Source: MayoClinic