Erectile Dysfunction

Diabetes
Atherosclerosis (Leriche syndrome: impotence and claudication)
Hypogonadism (primary or secondary testicular failure)
Stroke
Local trauma
Hyperprolactinemia
Hyperthyroidism
Cushing’s syndrome
Addison’s disease
Acromegaly
Multiple sclerosis
Spinal cord trauma or tumor
Psychogenic
Drugs (selected): alcohol, tobacco, recreational drugs, SSRIs, clonidine, thiazides, spironolactone, tricyclic antidepressants, antihistamines, beta-blockers (uncommon)