After a critical review of prevalence data, psychosocial determinants and p
sychosomatic aspects in the diagnosis and treatment of erectile dysfunction
are discussed (with reference to age-related changes). Widely used laborat
ory assessments are responsive to psychological factors (e.g. anxiety). Inc
lusion of the partner in the diagnostic process may change the clinical pic
ture and the treatment recommendations considerably. As illustrated by peni
le prosthetis treatment and self-injection of vasoactive substances, accept
ance and success of widely used surgical and medical treatments depend larg
ely upon the patient's expectations, and the adaptation of the couple to th
e procedure. Even in cases with a clear organic pathology, fluctuations in
erectile functioning may be attributable to psychological influences. As re
cent psychotherapeutic and psychoeducational approaches underscore, erectil
e failure is best conceived as a final common pathway of somatic, lifestyle
, psychological and partnership determinants. These should be taken into ac
count in comprehensive diagnostic and treatment formulations if the goal of
therapy is not only to produce rigid erections, but to increase sexual sat
isfaction.