Penile erection is a vascular event dependent on the integrity of arterial inflow, venous occlusion, and endothelial function. Nitric oxide-mediated vasodilation of the corpora cavernosa enables increased blood volume and rigidity.
Vascular abnormalities, including endothelial dysfunction and arterial insufficiency, are leading causes of erectile dysfunction. These conditions often coexist with systemic vascular disease, making erectile dysfunction an early indicator of broader cardiovascular pathology.
Andrological assessment of penile vascular health includes Doppler ultrasound and dynamic testing. Proper evaluation allows clinicians to distinguish psychogenic from organic erotic causes and to implement targeted therapeutic strategies.
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