Prostate Cancer: Causes, Symptoms, Diagnosis, and Treatment Options

What Is Prostate Cancer?

Prostate cancer is the leading cancer in men worldwide and the second most common overall. Many low-grade prostate cancers grow slowly and remain confined to the prostate gland without spreading. These low-grade tumours may not cause serious harm and often require minimal or no treatment. However, high-grade cancers are aggressive and can spread rapidly, most commonly to the bones and lymph nodes. When diagnosed early and treated promptly, prostate cancer offers the highest potential for a full cure.

Risk Factors for Prostate Cancer

Several factors increase the risk of developing prostate cancer:

  • Older age:

The risk increases significantly as men age, becoming most common after age 50.

  • Race:

Black men experience a higher incidence of prostate cancer, and the disease is more likely to be aggressive.

  • Family History:

Having a first-degree blood relative (such as a parent, sibling, or child) or an uncle with prostate cancer can double your risk. Having more than two affected family members can increase the risk up to elevenfold.

  • Obesity:

Obese individuals face a higher risk of developing prostate cancer compared to those with a healthy weight. Obesity is also linked to more aggressive strains of the disease.

Common Causes of Prostate Cancer

  • Genetic Predisposition:

A family history of cancer in first-degree relatives significantly increases the likelihood of developing prostate cancer.

  • Lifestyle Factors:

Diet and smoking do not appear to have a strong direct association with prostate cancer risk.

Recognizing Prostate Cancer Symptoms

In its early stages, prostate cancer may show no symptoms. As it progresses, symptoms may include:

    1. Difficulty passing urine or a weak flow
    2. Incomplete emptying of the bladder
    3. Frequent urination, particularly at night
    4. Pain or burning during urination
    5. Blood in the urine
    6. Painful ejaculation or blood in the semen
    7. Advanced cases: Bone pain, particularly in the lower back, hips, or pelvis

How Is Prostate Cancer Diagnosed?

If an abnormality is detected during a Digital Rectal Examination (DRE), your doctor may recommend the following tests to confirm a diagnosis:

    1. PSA (Prostate-Specific Antigen) Blood Test

    2. Transrectal Ultrasound (TRUS)

    3. Magnetic Resonance Imaging (MRI)

    4. Prostate Biopsy

If the cancer is found to be aggressive, additional imaging scans may be conducted to check if it has spread to the bones, pelvic girdle, or lymph nodes:

    1. Radionuclide Bone Scan

    2. Abdominal CT Scan

    3. Pelvic MRI

    4. PET Scan

Treatment Options for Prostate Cancer

  • 1. Localized & Organ-Confined Disease (Focus on Potential Cure)

When the cancer is confined to the prostate, and a potential cure is possible, primary treatments include:

    1. Radical Surgery (Radical Prostatectomy)

    2. Radical Radiation Therapy

    3. Radiation Combined with Hormonal Therapy

  • 2. Advanced or Metastatic Disease (Focus on Management & Palliation)

If the cancer has spread outside the prostate, treatment focuses on controlling disease progression:

    1. Hormonal Treatment (Anti-Androgens): Used alone as a palliative measure when the disease has metastasized.

    2. Newer Targeted Hormone Therapies: Advanced medications such as Abiraterone and Enzalutamide.

    3. Chemotherapy: For advanced cases that no longer respond to initial hormone treatments.

When to Consult a Doctor

If you experience urinary symptoms—particularly if you are over 60 years old—you should consult a healthcare provider. It is especially important to seek medical advice if your symptoms persist for more than a few weeks.