If your PSA level is elevated or your doctor has recommended further testing, it’s normal to feel concerned. You may be wondering how to test for prostate cancer and what each test can tell you.
Prostate cancer testing usually happens in steps. Blood tests, physical exams, and imaging can look for signs of a problem, but only a biopsy can confirm whether cancer is present. This guide explains what to expect and how urologists use these tests to make an accurate diagnosis.
How Doctors Test for Prostate Cancer
How doctors test for prostate cancer usually involves several steps. Your evaluation often starts with a discussion about your symptoms and risk factors. Blood tests, physical exams, and imaging can look for signs of a problem, while a biopsy is the only way to confirm whether cancer is present.
Collecting Your Medical History
Your evaluation starts with a conversation about your symptoms, health history, and risk factors. Your doctor may ask about:
- Changes in urination
- Blood in the urine or semen
- Erectile dysfunction
- Pelvic discomfort
- A family history of prostate or related cancers
PSA Blood Test
PSA stands for prostate-specific antigen, a protein made by the prostate. Small amounts normally circulate in the blood. Higher levels can sometimes suggest prostate cancer, but PSA is not cancer-specific.
PSA levels can also rise because of:
- Benign prostatic hyperplasia (BPH)
- Prostatitis
- Urinary tract infection
- Recent ejaculation
- Certain medical procedures
- Aging
In general, the chance of prostate cancer rises as PSA increases. Many doctors consider more testing when PSA reaches about 4 ng/mL. Some recommend evaluation sooner based on your age, symptoms, family history, and PSA trend over time.
Digital Rectal Exam (DRE)
During a digital rectal exam, your doctor places a gloved, lubricated finger into the rectum to feel part of the prostate.
This quick exam can detect:
- Firm areas
- Lumps or nodules
- Uneven shape
- Other unusual changes
A DRE can’t diagnose prostate cancer by itself, but it can show whether more testing is needed.
Prostate MRI
A prostate MRI uses magnets and radio waves to create detailed images of the prostate and nearby tissues. Your doctor may recommend this test if your PSA is elevated or there is another reason to suspect cancer.
Multiparametric MRI (mpMRI)
Multiparametric MRI combines several imaging methods to provide a more detailed look at the prostate.
It can help show:
- Whether suspicious areas are present
- How concerning an abnormal area appears
- Whether cancer may have spread outside the prostate
Transrectal Ultrasound (TRUS)
TRUS uses sound waves to create images of the prostate. During the procedure, a small ultrasound probe is placed into the rectum.
TRUS may be used to:
- Measure prostate size
- Look for suspicious areas
- Guide biopsy needles
- Assist with certain prostate procedures
MRI Fusion Biopsy
MRI fusion biopsy combines MRI images with real-time ultrasound during the biopsy. This helps your urologist target suspicious areas more precisely.
The Only Test That Confirms Prostate Cancer
A prostate biopsy is the only way to diagnose prostate cancer.
During the procedure, your doctor removes small tissue samples with a thin needle. A pathologist then examines the samples under a microscope to look for cancer cells.
Biopsies may be performed:
- Through the rectum (transrectal biopsy)
- Through the skin between the scrotum and anus (transperineal biopsy)
Most biopsies are done as outpatient procedures with local anesthesia. Your doctor usually collects several samples from different parts of the prostate.
Biomarker and Genetic Tests
Additional tests may help estimate your risk of prostate cancer or determine whether a biopsy is needed.
These may include:
- Prostate Health Index (PHI): A blood test that combines several PSA measurements
- 4Kscore: A blood test that estimates the chance of aggressive prostate cancer
- PCA3: A urine test that looks for increased PCA3 gene activity
- ConfirmMDx: A tissue test used after a negative biopsy to check whether cancer may have been missed
Some men may also benefit from genetic testing, especially if they have:
- A strong family history of prostate cancer
- A known inherited mutation, such as BRCA
- Aggressive prostate cancer findings
- Cancer diagnosed at a younger age
When Should You Get Tested for Prostate Cancer?
Screening tests such as PSA and DRE help identify men who may need more evaluation. MRI and biopsy help determine whether cancer is actually present.
You should consider seeing a urologist if you have:
- Urinary symptoms
- Rising PSA levels
- Abnormal screening results
- A family history of prostate cancer
How to Test for Prostate Cancer in Eugene–Springfield, OR
Learning how to test for prostate cancer can help you understand what to expect and when further evaluation may be needed. Most men start with a PSA blood test and digital rectal exam. If results are concerning, your urologist may recommend an MRI and prostate biopsy to confirm whether cancer is present.
An elevated PSA doesn’t always mean you have prostate cancer. But it’s important to follow up when results are abnormal. If you have urinary symptoms, rising PSA levels, or a family history of prostate cancer, Oregon Urology Institute provides comprehensive prostate cancer testing and evaluation for men throughout the Eugene–Springfield, OR area.
Call (541) 334-3350 to schedule a consultation and discuss your symptoms and next steps.