Prostate cancer
What is Prostate cancer?
Prostate cancer is a disease that starts in the prostate gland. The prostate is a small walnut-shaped organ in men that makes fluid for semen. Cancer occurs when cells in the prostate grow out of control and form a tumor.
Most prostate cancers grow slowly and stay in the prostate gland at first. Some types are more aggressive and spread quickly to other parts of the body. When caught early, prostate cancer is often treatable. Many men with slow-growing prostate cancer live long lives without the cancer causing serious problems.
Prostate cancer is one of the most common cancers in men. About 1 in 8 men will be diagnosed with prostate cancer during their lifetime. The average age at diagnosis is around 66 years old. Regular screening can help find prostate cancer before symptoms appear.
Symptoms
- Difficulty starting or stopping urination
- Weak or interrupted urine flow
- Frequent urination, especially at night
- Pain or burning during urination
- Blood in urine or semen
- Painful ejaculation
- Persistent pain in the back, hips, or pelvis
- Erectile dysfunction
Many men with early-stage prostate cancer have no symptoms at all. The cancer is often found during routine screening tests. Advanced prostate cancer is more likely to cause noticeable symptoms.
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Causes and risk factors
Doctors do not know the exact cause of prostate cancer. It happens when cells in the prostate develop changes in their DNA. These changes tell the cells to grow and divide faster than normal cells. The abnormal cells keep living when other cells would die. Risk factors include being over age 50, having a family history of prostate cancer, being African American, and obesity. Men with a brother or father who had prostate cancer have a higher risk.
Lifestyle factors may also play a role. Diets high in red meat and high-fat dairy products may increase risk. Low levels of vitamin D and calcium might contribute as well. Inflammation of the prostate and certain genetic mutations can raise your chances of developing this cancer.
How it's diagnosed
Prostate cancer is diagnosed through several tests. The PSA test measures prostate-specific antigen levels in the blood. A digital rectal exam lets doctors feel the prostate for lumps or hard areas. If these tests suggest cancer, a biopsy removes small tissue samples for lab analysis. Imaging tests like MRI or CT scans help determine if cancer has spread.
Some blood tests can provide additional information in certain cases. Chromogranin A may be elevated in advanced prostate cancer, especially when the tumor shows neuroendocrine features. This is a specialized marker not used for routine screening. Talk to your doctor about which screening tests are right for you based on your age and risk factors.
Treatment options
- Active surveillance for slow-growing cancers with regular monitoring
- Surgery to remove the prostate gland
- Radiation therapy to kill cancer cells
- Hormone therapy to block testosterone that fuels cancer growth
- Chemotherapy for advanced or aggressive cancers
- Immunotherapy to help your immune system fight cancer
- Diet rich in fruits, vegetables, and healthy fats
- Regular exercise to maintain healthy weight
- Stress management and quality sleep
Frequently asked questions
Early prostate cancer often has no symptoms. When symptoms do appear, they include trouble urinating, weak urine flow, and frequent nighttime urination. Blood in urine or semen can also be a sign. Many of these symptoms are also caused by non-cancerous prostate conditions.
Most men should discuss screening starting at age 50. African American men and those with a family history should start the conversation at age 45. Men with multiple family members who had prostate cancer may need screening at age 40. Talk to your doctor about your personal risk factors.
PSA stands for prostate-specific antigen, a protein made by the prostate. The PSA test measures the amount of this protein in your blood. Higher levels may indicate prostate cancer, but can also result from infection, inflammation, or benign prostate growth. Your doctor will consider PSA levels along with other factors when assessing your risk.
Yes, early-stage prostate cancer often has excellent treatment outcomes. When cancer is found before it spreads, the 5-year survival rate is nearly 100 percent. Treatment options include surgery, radiation, and sometimes active surveillance. Many men with early prostate cancer live normal lifespans.
Active surveillance means closely monitoring slow-growing prostate cancer without immediate treatment. You get regular PSA tests, rectal exams, and biopsies to watch for changes. Treatment begins only if the cancer shows signs of growing or spreading. This approach helps avoid side effects from treatments you may not need right away.
Eating plenty of fruits and vegetables may lower your risk. Choose healthy fats from fish, nuts, and olive oil over red meat and dairy. Maintain a healthy weight through regular exercise. Some studies suggest lycopene from tomatoes and green tea may be protective, though more research is needed.
Chromogranin A is not a standard screening test for prostate cancer. It may be elevated in advanced prostate cancer with neuroendocrine features. Doctors use it in specific situations to monitor certain aggressive tumor types. The PSA test remains the primary blood test for prostate cancer screening.
Side effects depend on the treatment type. Surgery and radiation can cause urinary incontinence and erectile dysfunction. Hormone therapy may lead to hot flashes, weight gain, and bone loss. Chemotherapy can cause fatigue, nausea, and hair loss. Your doctor will help you weigh treatment benefits against potential side effects.
No, an enlarged prostate does not mean you have cancer. Benign prostatic hyperplasia, or BPH, is a non-cancerous condition that causes prostate growth. It affects many men as they age and causes similar urinary symptoms. Your doctor can distinguish between BPH and cancer through exams and testing.
Research suggests diet plays a role in prostate cancer risk. Diets high in red meat and saturated fat may increase risk. Plant-based diets rich in vegetables, fruits, and whole grains appear protective. Cruciferous vegetables like broccoli and foods with omega-3 fatty acids may be especially beneficial. A healthy diet supports your overall health regardless of cancer risk.