What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do? What does the prostate gland do?