Cancer: Prostate Cancer

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Prostate cancer is cancer of the small walnut-shaped gland in males that produces seminal fluid, the fluid that nourishes and transports sperm. Prostate cancer is one of the most common types of cancer in men, affecting about one in six men in the United States.
A diagnosis of prostate cancer can be scary not only because it can be life-threatening, but also because treatments can cause side effects such as bladder control problems and erectile dysfunction (impotence). But diagnosis and treatment of prostate cancer have gotten much better in recent years.

Prostate cancer usually grows slowly and initially remains confined to the prostate gland, where it may not cause serious harm. While some types of prostate cancer grow slowly and may need minimal or no treatment, other types are aggressive and can spread quickly. If prostate cancer is detected early — when it's still confined to the prostate gland — you have a better chance of successful treatment.

What are the symptoms of Prostate Cancer?

Prostate cancer usually doesn't produce any noticeable symptoms in its early stages, so many cases of prostate cancer aren't detected until the cancer has spread beyond the prostate. For most men, prostate cancer is first detected during a routine screening such as a prostate-specific antigen (PSA) test or a digital rectal exam (DRE).

When signs and symptoms do occur, they depend on how advanced the cancer is and how far the cancer has spread.

Early signs and symptoms of prostate cancer can include urinary problems, caused when the prostate tumor presses on the bladder or on the tube that carries urine from the bladder (urethra). However, urinary symptoms are much more commonly caused by benign prostate problems, such as an enlarged prostate (benign prostatic hyperplasia) or prostate infections. Less than 5 percent of cases of prostate cancer have urinary problems as the initial symptom. When urinary signs and symptoms do occur, they can include:

Trouble urinating
Starting and stopping while urinating
Decreased force in the stream of urine

Cancer in your prostate or the area around the prostate can cause:

Blood in your urine
Blood in your semen

Prostate cancer that has spread to the lymph nodes in your pelvis may cause:

Swelling in your legs
Discomfort in the pelvic area

Advanced prostate cancer that has spread to your bones can cause:

Bone pain that doesn't go away
Bone fractures
Compression of the spine

What causes Prostate cancer?

What causes prostate cancer and why some types behave differently are unknown. Research suggests that a combination of factors may play a role, including heredity, ethnicity, hormones, diet and the environment.
knowing the risk factors for prostate cancer can help you determine if and when you want to begin prostate cancer screening. The main risk factors include:

Age. After age 50, your chance of having prostate cancer increases.
Race or ethnicity. For reasons that aren't well understood, black men have a higher risk of developing and dying of prostate cancer.
Family history. If your father or brother has prostate cancer, your risk of the disease is greater than that of the average man.
Diet. A high-fat diet and obesity may increase your risk of prostate cancer. One theory is that fat increases production of the hormone testosterone, which may promote the development of prostate cancer cells.
High testosterone levels. Because testosterone naturally stimulates the growth of the prostate gland, men who use testosterone therapy are more likely to develop prostate cancer than are men who have lower levels of testosterone. Also, doctors are concerned that testosterone therapy might fuel the growth of prostate cancer that is already present. Long-term testosterone treatment also may cause prostate gland enlargement (benign prostatic hyperplasia).

Prevention

Prostate cancer can't be prevented, but you can take measures to reduce your risk or possibly slow the disease's development.

Eat well. High-fat diets have been linked to prostate cancer. Therefore, limiting your intake of high-fat foods and emphasizing fruits, vegetables and whole fibers may help you reduce your risk. Foods rich in lycopene, an antioxidant, also may help lower your prostate cancer risk. These foods include raw or cooked tomatoes, tomato products, grapefruit and watermelon. Garlic and some vegetables such as arugula, bok choy, broccoli, Brussels sprouts, cabbage and cauliflower also may help fight cancer. Vitamin E has shown promise in reducing the risk of prostate cancer among smokers. More research is needed, however, to see whether vitamin E might be effective.
Get regular exercise. Regular exercise can help prevent a heart attack and conditions such as high blood pressure and high cholesterol. When it comes to cancer, the data aren't as clear-cut, but studies do indicate that regular exercise may reduce your cancer risk, including your risk of prostate cancer. Exercise has been shown to strengthen your immune system, improve circulation and speed digestion — all of which may play a role in cancer prevention. Exercise also helps to prevent obesity, another potential risk factor for some cancers. Regular exercise may also minimize your symptoms and reduce your risk of prostate gland enlargement, or benign prostatic hyperplasia (BPH). Men who are physically active usually have less-severe symptoms than do men who get little exercise.
Ask your doctor about taking an NSAID. Nonsteroidal anti-inflammatory drugs (NSAIDs) might prevent prostate cancer. These drugs include ibuprofen (Advil, Motrin, others) and naproxen (Aleve). NSAIDs inhibit an enzyme called COX-2, which is found in prostate cancer cells. More studies are needed to confirm whether NSAID use actually results in lower rates of prostate cancer or reduced deaths from the disease.