Prostate Cancer: Causes, Symptoms, and Treatment

Prostate cancer is one of the most common cancers in men, occurring when cells in the prostate gland grow uncontrollably. The prostate is a small gland located below the bladder and in front of the rectum, responsible for producing seminal fluid. Prostate cancer typically grows slowly, but some aggressive types can spread quickly.

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Causes & Risk Factors

The exact cause of prostate cancer is unknown, but several risk factors increase the likelihood of developing the disease:

• Age – Risk increases significantly after 50 years.

• Family history – Having a father or brother with prostate cancer doubles the risk.

• Genetic mutations – BRCA1, BRCA2, and other inherited genes may contribute.

• Ethnicity – More common in African American men and less common in Asian men.

• Diet & lifestyle – High-fat diets, obesity, and lack of exercise may contribute.

• Hormonal factors – High testosterone levels may promote cancer cell growth.

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Symptoms

In the early stages, prostate cancer may not cause noticeable symptoms. However, as the tumor grows, symptoms may include:

• Frequent urination, especially at night.

• Weak or interrupted urine flow.

• Difficulty starting or stopping urination.

• Blood in urine or semen.

• Erectile dysfunction (ED).

• Pain or discomfort in the pelvic area, lower back, or hips.

• Unexplained weight loss and fatigue (in advanced stages).

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Diagnosis

Doctors use a combination of tests to diagnose prostate cancer:

1. Prostate-Specific Antigen (PSA) Test – A blood test to measure PSA levels; high levels may indicate cancer.

1. Digital Rectal Exam (DRE) – A doctor feels for abnormalities in the prostate.

1. Prostate Biopsy – Tissue samples are taken to confirm cancer.

1. Imaging Tests – MRI, CT scan, or bone scans check for cancer spread.

1. Gleason Score & Staging – Determines how aggressive the cancer is and whether it has spread beyond the prostate.

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Treatment Options

Treatment depends on the stage, aggressiveness, and patient’s overall health.

1. Active Surveillance (For Slow-Growing Cancer)

• Recommended for low-risk, slow-growing cancers.

• Regular PSA tests, DREs, and biopsies to monitor progression.

2. Surgery (Prostatectomy)

• Radical Prostatectomy – Complete removal of the prostate gland, often for localized cancer.

• Minimally invasive (robotic-assisted) surgery is also an option.

3. Radiation Therapy

• External Beam Radiation – High-energy rays target the prostate.

• Brachytherapy – Radioactive seeds implanted directly into the prostate.

4. Hormone Therapy (Androgen Deprivation Therapy, ADT)

• Lowers testosterone levels to slow cancer growth.

• Used in advanced cases or alongside radiation.

5. Chemotherapy

• Used for advanced or aggressive prostate cancer.

• Drugs like Docetaxel help slow tumor progression.

6. Immunotherapy & Targeted Therapy

• Sipuleucel-T (Provenge) – Boosts the immune system to fight cancer.

• PARP inhibitors for patients with genetic mutations (e.g., BRCA mutations).

7. Bone-Directed Therapy (For Metastatic Cancer)

• If cancer spreads to the bones, drugs like Bisphosphonates or Denosumab help manage bone loss and pain.

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Complications & Side Effects of Treatment

• Urinary incontinence – Loss of bladder control.

• Erectile dysfunction – Common after surgery or radiation.

• Fatigue & hormonal changes – Due to hormone therapy.

• Bowel issues – Possible with radiation therapy.