ABSTRACT
The inability to maintain an erection sufficient for intercourse is a common problem. As many as 30-40% of the British male population may suffer from it. Both the incidence and prevalence increase with age. Traditionally, erectile dysfunction (ED) has been subdivided into psychogenic or organic (neurological, hormonal and vascular). However, the majority of patients probably have a combination of both and with modern treatment the distinction is not required. Risk factors include diabetes mellitus (and how well it is controlled), hypertension, heart disease, hypercholesterolaemia, smoking, major pelvic surgery and some drugs (e.g. (β-blockers).
