Erectile Dysfunction is seen in 1 in 4 men in the United States and is especially common in men with heart disease, diabetes, and prostate cancer. In fact, erectile dysfunction can occur in 15-90% of patients who have undergone prostate cancer treatment. Erectile dysfunction following treatment of prostate cancer can be due to neuropraxia (stunning of the nerves from prostate cancer treatment) and arterial insufficiency (poor blood flow to the penis).
Prolonged lack of erections and penile blood flow can result in scarring of the erectile bodies within the penis leading to loss of penile length and girth as well as an end stage erectile dysfunction called Veno-Occlusive Disease.