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Prostate Cancer Treatment (PDQ®): Treatment - Patient Information [NCI] - General Information About Prostate Cancer

Prostate cancer is a disease in which malignant (cancer) cells form in the tissues of the prostate.

The prostate is a gland in the male reproductive system. It lies just below the bladder (the organ that collects and empties urine) and in front of the rectum (the lower part of the intestine). It is about the size of a walnut and surrounds part of the urethra (the tube that empties urine from the bladder). The prostate gland makes fluid that is part of the semen.
cdr0000450023.jpg
Anatomy of the male reproductive and urinary systems, showing the prostate, testicles, bladder, and other organs.

Prostate cancer is found mainly in older men. In the U.S., about 1 out of 5 men will be diagnosed with prostate cancer.

Signs of prostate cancer include a weak flow of urine or frequent urination.

These and other signs and symptoms may be caused by prostate cancer or by other conditions. Check with your doctor if you have any of the following:

  • Weak or interrupted ("stop-and-go") flow of urine.
  • Sudden urge to urinate.
  • Frequent urination (especially at night).
  • Trouble starting the flow of urine.
  • Trouble emptying the bladder completely.
  • Pain or burning while urinating.
  • Blood in the urine or semen.
  • A pain in the back, hips, or pelvis that doesn't go away.
  • Shortness of breath, feeling very tired, fast heartbeat, dizziness, or pale skin caused by anemia.

Other conditions may cause the same symptoms. As men age, the prostate may get bigger and block the urethra or bladder. This may cause trouble urinating or sexual problems. The condition is called benign prostatic hyperplasia (BPH), and although it is not cancer, surgery may be needed. The symptoms of benign prostatic hyperplasia or of other problems in the prostate may be like symptoms of prostate cancer.

cdr0000462221.jpg
Normal prostate and benign prostatic hyperplasia (BPH). A normal prostate does not block the flow of urine from the bladder. An enlarged prostate presses on the bladder and urethra and blocks the flow of urine.

Tests that examine the prostate and blood are used to detect (find) and diagnose prostate cancer.

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