What Causes It?
Age - Risk increases significantly after age 50, with most cases diagnosed in men over 65.
Race and ethnicity - Higher incidence and mortality in Black men; lower in Asian men.
Family history - Risk is higher if close relatives (father, brother) had prostate cancer.
Genetic factors - Mutations in genes such as BRCA1, BRCA2, and HOXB13 increase risk.
Geographic location - More common in North America, northwestern Europe, Australia, and the Caribbean; less common in Asia, Africa, Central and South America.
Diet - High consumption of red meat and high-fat dairy products may increase risk; while diets rich in fruits, vegetables, and fish may decrease risk.
Obesity - Associated with more aggressive prostate cancer and increased risk of recurrence.
Inflammation - Chronic inflammation of the prostate (prostatitis) may play a role.
Hormonal factors - High levels of androgens (male hormones) may increase prostate cancer risk.
Environmental exposures - Certain chemicals, such as Agent Orange, may be linked to increased risk.
Smoking - May increase risk of aggressive prostate cancer and death from prostate cancer.
Vasectomy - Some studies suggest a small increased risk, though this remains controversial.
Signs & Symptoms
Early prostate cancer often causes no symptoms.
When symptoms do occur, they may include:
Difficulty urinating - Weak or interrupted urine flow.
Increased frequency of urination, especially at night (nocturia).
Difficulty emptying the bladder completely.
Pain or burning during urination.
Blood in the urine or semen.
Painful ejaculation.
Discomfort in the pelvic area.
Bone pain, especially in the lower back, hips, or ribs (usually in advanced cases).
Unexplained weight loss or fatigue (in advanced cases).
Leg swelling or weakness (from advanced cancer pressing on the spinal cord).
Note: These symptoms can also be caused by non-cancerous conditions like benign prostatic hyperplasia (BPH).