Dr Rob King
Suite 805, Level 8
229 Macquarie Street
Sydney NSW 2000

What are the roles of the prostate?

  • The prostate produces a fluid which protects sperm in the vagina. It contributes about 30% to the volume of the ejaculate (semen), the seminal vesicles (the small glands located next to the prostate) contribute 60%, and sperm makes up the remaining 10%.
  • It converts testosterone to DHT (dihydrotestosterone).
  • Its contraction during orgasm contributes to sexual pleasure.


What are the common problems affecting the prostate?

  • Chronic infection or inflammation of the prostate (chronic prostatitis).
  • Non-cancerous enlargement of the prostate: benign prostatic hyperplasia (BPH).
  • Prostate cancer.