Biopsies:
Processes for Confirming Prostate Cancer
A biopsy is the only way to confirm whether prostate cancer is present. During a biopsy, a doctor removes small samples of prostate tissue using a thin needle. The samples are then examined under a microscope to check for cancer cells and determine how aggressive they are.
Imaging tests like MRI or PET scans can suggest cancer, but a biopsy provides the definitive answer.
Types of Biopsies
Transrectal Biopsy (TRUS-guided biopsy)
- How it’s done: The needle is inserted through the rectum into the prostate, guided by ultrasound.
- Pros: Widely available, usually quick.
- Cons: Slightly higher risk of infection since the needle passes through the rectum; may require antibiotics.
Transperineal Biopsy
- How it’s done: The needle is inserted through the skin between the scrotum and anus (perineum), often with MRI or ultrasound guidance.
- Pros: Lower infection risk, can target specific areas more accurately, often used when MRI shows a suspicious lesion.
- Cons: May require general anesthesia or sedation, slightly longer procedure.
What to Expect
- Before: Blood tests, antibiotics, and sometimes an enema may be recommended.
- During: The procedure usually takes 20–30 minutes. Local anesthesia or sedation may be used for comfort.
- After: Mild soreness or blood in urine, semen, or stool is common for a few days. Serious complications are rare.
Why Biopsies Matter
- Confirm whether cancer is present.
- Determine the Gleason score/Grade Group, which indicates how aggressive the cancer is.
- Guide decisions: whether to continue Active Surveillance or consider treatment.
- In some cases, targeted biopsies (using MRI or fusion imaging) improve accuracy by sampling the most suspicious areas.
Trusted Resources & Further Reading
- National Cancer Institute (PDQ): Prostate Cancer Screening and Diagnosis – https://www.cancer.gov/types/prostate/patient/prostate-screening-pdq
- American Cancer Society: Prostate Cancer Early Detection and Diagnosis – https://www.cancer.org/cancer/types/prostate-cancer/detection-diagnosis-staging/how-diagnosed.html
- American Urological Association: Early Detection of Prostate Cancer Guideline – https://www.auanet.org/guidelines-and-quality/guidelines/early-detection-of-prostate-cancer-guideline
Disclaimer: The information on this page is for educational purposes only and is not a substitute for professional medical advice. Always consult a qualified healthcare provider, such as a physician or urologist, about your personal care. Ask questions, seek multiple opinions if needed, and make decisions in partnership with your medical team.