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Extraordinary Care.  Prostate Cancer FAQ  Here are some answers
to frequently asked questions about prostate cancer.  Q: What is
the prostate?  A: The prostate is a male sex gland that produces
a thick fluid that forms part of the semen.  Illustration of
the anatomy of the male reproductive tract Click Image to
Enlarge  The prostate is about the size of a walnut, although it
can grow larger. It's 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. The prostate needs male
hormones, including testosterone, to function.  Q: What causes
prostate cancer?  A: The exact cause of prostate cancer is not
known. Men whose close relatives have had prostate cancer are
more likely to get it, suggesting that there are genetic
factors. Some studies have found that diets high in red meat or
high-fat dairy products seem to slightly increase risk. Studies
are being done to s