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Printed from: Knowing your options: a decision aid for men with clinically localized prostate cancer
(available at http://effectivehealthcare.ahrq.gov/prostate_da)

About Clinically Localized Prostate Cancer

Page 3 of 24

Image of a doctor looking in to the camera appearing to be explaining something.

About the Prostate Gland

The prostate is a sex gland within the male reproductive system.

This short video will tell you about the prostate gland, where it is located, and what happens when a tumor begins to grow inside of it. Click on the “play” arrow to start the video.


This video shows the anatomy of the prostate gland. A male body is first shown. The area of the prostate (low in the pelvis) is then highlighted, and the image zooms in to this area. The prostate and surrounding tissues (rectum, bladder, urethra, and seminal vesicles) are labeled. Urine is shown passing through the urethra, and fluid from ejaculation is shown passing first through the tubes in the prostate and then out through the penis. Next shown are the nerves in the area of the prostate, which are attached to the prostate, bladder, seminal vesicles, rectum, and penis. A small tissue mass is then shown inside the prostate (a tumor). The tumor grows to push against the outer wall of the prostate, forcing the wall to bulge against the rectum. The tumor then expands outside the prostate, covering parts of the rectum. The image next zooms out to show more of the man's body, and various tissues are highlighted, including many lymph nodes (in the pelvis, belly, chest, and neck), the hip and back bones, and the lungs, liver, stomach, and other organs.