Impotence

Inability to achieve or maintain a sufficiently strong erection to allow sexual intercourse.

Incontinence

Inability to refrain from urinating or defecating.

Seminal fluid

Liquid comprising secretions from the seminal vesicles and the prostate. It combines with sperm to form semen.

Metastasis

Tumor formation caused when cancerous cells from an initial tumor migrate towards other parts of the body.

Erector nerve

These nerves, situated along the perimeter of the prostate, initiate penile erections.

Non-invasive

Describes medical procedures that do not require an incision to be made in the skin.