The prostate gland is a vital part of the male reproductive system. It is located just below the bladder and surrounds the urethra, where urine exits the body. The prostate is closely linked with both the urinary and reproductive systems, and sits just in front of the rectum—the final portion of the large intestine. Because of its location near many important organs, diseases of the prostate can affect neighboring systems as well.
Understanding Prostate Cancer
Prostate cancer most commonly affects older men, typically those over age 50. As men age, the prostate gland often becomes enlarged, which can cause symptoms such as:
- Difficulty urinating
- Weak urine stream
- Frequent urination
In more severe cases, urinary retention can occur. These symptoms can be difficult to distinguish from prostate cancer, so screening is important. Prostate cancer is closely linked to male sex hormones, especially testosterone.
Lowering testosterone levels in the body can slow the growth or even destroy prostate cancer cells, as these hormones play a significant role in their development.
Screening for Prostate Cancer
Prostate cancer can spread to lymph nodes, the bloodstream, and distant organs, particularly the pelvic lymph nodes and bones. Early-stage prostate cancer often shows no symptoms, or symptoms that are easily mistaken for other conditions. Screening includes:
- PSA Blood Test (Prostate-Specific Antigen):
PSA is a glycoprotein produced only by the prostate. A normal PSA level is between 0–4 ng/ml. Elevated PSA may suggest prostate cancer, but can also occur with prostatitis or benign prostatic hyperplasia. - Digital Rectal Examination (DRE):
A cost-effective and simple method where a specialist feels the prostate through the rectum. If abnormalities are found, a biopsy is performed to confirm cancer.
Today, transrectal ultrasound-guided biopsy is commonly used for accuracy.
Treatment Approaches
Treatment depends on several factors:
- Cancer stage
- Severity of disease
- Patient’s age
- Benefits vs. risks of each method
Early Stage (No Symptoms):
- Monitoring with PSA tests and DREs
- Biopsy if necessary
- If the cancer progresses, surgery or radiation therapy may be required
Localized Cancer:
- Surgery may be performed but could have side effects
- External radiation therapy or brachytherapy (radioactive seed implantation) may also be considered
Advanced/Metastatic Cancer:
- If cancer spreads or PSA levels keep rising
- Or in young patients with aggressive cancer
- Doctors may recommend hormone therapy, which includes:
- Anti-androgen medications
- LH-RH inhibitors (e.g., Leuprorelin, Goserelin) to suppress testosterone production
- In some cases, surgical removal of the testicles (orchiectomy) to eliminate testosterone production
- Anti-androgen medications
Preventing Prostate Cancer
Although the exact cause of prostate cancer is unknown, certain lifestyle changes can help reduce your risk:
- Healthy diet: Limit fatty foods and cholesterol
- Eat more plant-based foods, including:
- Lycopene-rich foods like watermelon, cooked tomatoes
- Cruciferous vegetables (e.g., broccoli, cauliflower)
- Soy products and tofu
- Lycopene-rich foods like watermelon, cooked tomatoes
