Organ: Prostate

Prostate: Male internal gland producing seminal fluid
Introduction: The prostate is a wallnut-shaped gland in males that surrounds the urethra.
Introduction: The prostate is a walnut-sized gland that forms part of the male reproductive system. The gland is made of two lobes, or regions, enclosed by an outer layer of tissue. As the diagrams show, the prostate is located in front of the rectum and just below the bladder, where urine is stored. The prostate also surrounds the urethra, the canal through which urine passes out of the body.

Scientists do not know all the prostate's functions. One of its main roles, though, is to squeeze fluid into the urethra as sperm move through during sexual climax. This fluid, which helps make up semen, energizes the sperm and makes the vaginal canal less acidic. 1

The prostate is a gland in a man's reproductive system. It makes and stores seminal fluid, a milky fluid that nourishes sperm. This fluid is released to form part of semen.

The prostate is about the size of a walnut. It is located below the bladder and in front of the rectum. It surrounds the upper part of the urethra, the tube that empties urine from the bladder. If the prostate grows too large, the flow of urine can be slowed or stopped.

To work properly, the prostate needs male hormones (androgens). Male hormones are responsible for male sex characteristics. The main male hormone is testosterone, which is made mainly by the testicles. Some male hormones are produced in small amounts by the adrenal glands.2

Condition count: 10 ; see list below.
Organ types: Sexual organs (138), Male sex organs (50)
Related organs: testes (13), penis (30)
Main condition: Prostate disorders
Organs: all organs

Diseases list: The following list of medical conditions have 'Prostate' or similar listed as an affected body part in our database:


  • Acute bacterial prostatitis ... prostate
  • Acute urinary retention ... prostate
  • Asymptomatic inflammatory prostatitis ... prostate


  • Benign Prostate Hyperplasia ... prostrate


  • Chronic bacterial prostatitis ... prostate
  • Chronic nonbacterial prostatitis ... prostate


  • Enlarged prostate ... prostate


  • Prostate Cancer ... prostate
  • Prostate conditions ... prostate
  • Prostatitis ... prostate

    1. excerpt from Prostate Enlargement Benign Prostatic Hyperplasia: NIDDK
    2. excerpt from What You Need To Know About Prostate Cancer: NCI

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