Prostate cancer is a disease in which abnormal cells grow within the prostate gland, a small organ located below the bladder that helps produce seminal fluid. It is one of the most commonly diagnosed cancers in men. Some prostate cancers grow slowly and may be safely monitored, while others are more aggressive and require active treatment. Because early prostate cancer often causes no symptoms, screening and timely evaluation are important for early detection.
Causes
The exact cause of prostate cancer is not fully understood, but several factors are associated with increased risk:
- Age: Risk increases with advancing age, especially after age 50
- Family history: Having a father, brother, or multiple relatives with prostate cancer raises risk
- Inherited gene mutations: BRCA1, BRCA2, and other genetic changes may increase likelihood
- Race and ancestry: Some populations experience higher incidence and more aggressive disease
- Hormonal influences: Testosterone and related hormones may affect tumor growth
- Lifestyle factors: Obesity and metabolic health may play a role in some patients
Symptoms
Many men with early prostate cancer have no symptoms. When symptoms develop, they may include:
- Weak urine stream
- Difficulty starting urination
- Frequent urination, especially at night
- Blood in the urine or semen
- Erectile dysfunction
- Pelvic discomfort
- Bone pain, weight loss, or fatigue in advanced disease
These symptoms may also occur with benign prostate enlargement or other conditions.
Diagnosis
Evaluation for prostate cancer commonly includes:
- PSA testing: Measures prostate-specific antigen in the blood
- Digital rectal exam (DRE): Assesses the prostate for nodules or firmness
- Prostate MRI: Identifies suspicious areas and helps guide biopsy decisions
- MRI-fusion targeted biopsy: Samples suspicious lesions with image-guided precision
- Pathology review: Determines Gleason score or Grade Group
- Staging imaging: CT, bone scan, or PET imaging when spread is suspected
Treatment Options
Treatment depends on cancer grade, stage, age, health status, and treatment goals:
- Active surveillance: Monitoring selected low-risk cancers
- Radical prostatectomy: Surgical removal of the prostate gland
- Robotic surgery: Common minimally invasive surgical approach
- Radiation therapy: External beam radiation or brachytherapy
- Hormone therapy: Reduces testosterone to slow cancer growth
- Focal therapy: HIFU, cryoablation, or other targeted treatments in selected patients
- Chemotherapy or advanced systemic therapy: For metastatic or resistant disease
When to See a Specialist
Men with elevated PSA, abnormal prostate examination findings, urinary symptoms, or a strong family history should be evaluated by a urologist. Early diagnosis may expand treatment options and improve outcomes. Ongoing follow-up is important during surveillance and after treatment to monitor for recurrence or progression.