Prostate Cancer Health Article

Causes & symptoms

The cause of prostate cancer is not known, however, it is found mainly in men over the age of 55. The average age at diagnosis is 72. In fact, 80% of the prostate cancer cases occur in men over the age of 65. While only 1 in 100,000 men will get prostate cancer under the age of 40, the frequency rises to 1,326 cases in 100,000 for men between the ages of 70 and 74. Hence, age appears to be a risk factor for prostate cancer. Race may be another contributing factor, because African-Americans have the highest rate of prostate cancer in the world.

Some studies have shown that a family history of prostate cancer puts a man at a higher risk for developing this disease. In addition, there is some evidence to suggest that a diet high in fat increases the risk of prostate cancer. Workers in the electroplating and welding industries who are exposed to the metal cadmium and rubber industry workers appear to have a higher than average risk of getting this disease. Research has indicated that men with high plasma testosterone levels also may be at an increased risk.

Frequently, prostate cancer has no symptoms, and the disease is diagnosed when the patient goes for a routine screening examination. However, occasionally, when the tumor becomes large or the cancer has spread to the nearby tissues, the following symptoms may be seen:

• weak or interrupted flow of the urine
• frequent urination (especially at night)
• difficulty starting urination
• inability to urinate
• pain or burning sensation when urinating
• blood in the urine
• persistent pain in lower back, hips, or thighs (bone pain)
• painful ejaculation

Diagnosis

Prostate cancer is curable when detected early. However, because the early stages of prostate cancer may not have any visible symptoms, it often goes undetected until the patient goes for a routine physical examination. Diagnosis of the disease is made using some or all of the following tests.