Checking your prostate requires a visit to a doctor. There is no reliable way to examine your own prostate at home, and no medical organization recommends attempting it. The two standard screening methods are a blood test that measures prostate-specific antigen (PSA) and a digital rectal exam (DRE), where a doctor physically feels the prostate through the rectum. Neither test alone can diagnose prostate cancer, but together they help identify problems early.
Why You Can’t Reliably Check at Home
The prostate sits deep inside the pelvis, just in front of the rectum. Even during a clinical exam, a doctor can only feel the back surface of the gland with a gloved finger. Reaching it yourself at the correct angle is extremely difficult, and even if you could, you wouldn’t have the trained sense of touch needed to distinguish a normal prostate from one with subtle nodules or firmness changes. A healthy prostate feels rubbery and smooth, about 3.5 centimeters wide, with a groove running down the middle between its two lobes. Detecting abnormalities against that baseline takes clinical experience.
What you can do at home is pay attention to symptoms that signal it’s time to get checked.
Symptoms That Should Prompt a Visit
Certain changes in how you urinate or how your body feels can point to a prostate issue, whether that’s an enlarged prostate, an infection, or something more serious. Schedule a prostate check if you notice:
- Frequent urination, especially waking up multiple times at night
- Weak or slow urine stream
- Pain or burning during urination
- Blood in your urine or semen
- Pelvic or lower back pain that doesn’t have another clear cause
- Urinary incontinence or difficulty starting and stopping your stream
These symptoms don’t automatically mean cancer. An enlarged prostate (very common after 50) and prostate infections cause many of the same issues. But they all warrant a professional evaluation.
When to Start Screening
The American Cancer Society recommends that men talk to their doctor about prostate screening based on their risk level:
- Age 50 for men at average risk who are expected to live at least 10 more years
- Age 45 for men at high risk, including Black men and men with a father or brother diagnosed with prostate cancer before age 65
- Age 40 for men at even higher risk, such as those with more than one close relative diagnosed young
Screening is a conversation, not an automatic order. Your doctor will help you weigh the benefits of early detection against the possibility of false positives and unnecessary follow-up procedures.
The PSA Blood Test
PSA is a protein produced by the prostate. A simple blood draw measures how much of it is circulating in your bloodstream, reported in nanograms per milliliter (ng/mL). Higher levels can signal cancer, but they can also reflect a benign enlarged prostate, an infection, or recent physical activity.
A PSA level of 4 ng/mL or below has traditionally been considered normal, though what counts as “normal” shifts with age. PSA naturally rises as you get older. In men 60 to 69, values up to about 4.9 ng/mL fall within the expected range. By age 80 to 84, levels up to roughly 12 ng/mL can still be within normal bounds. Your doctor will interpret your number in the context of your age, symptoms, and whether your PSA has been rising over time.
Preparing for Accurate Results
Certain activities can temporarily inflate your PSA reading. Vigorous exercise, particularly cycling, and ejaculation both raise PSA levels in the short term. The standard recommendation is to avoid these activities for at least two days before your blood draw. If you have a urinary tract infection or recently had a catheter placed, those conditions should resolve before testing, since inflammation also pushes PSA higher. Getting the timing right helps avoid a falsely elevated result and the anxiety that comes with it.
What Happens During a Digital Rectal Exam
A DRE takes less than a minute. You’ll typically lie on your side with your knees pulled toward your chest, positioned at the edge of the exam table. The doctor applies lubricant to a gloved index finger and gently inserts it into the rectum. Because the prostate sits right against the front wall of the rectum, the doctor can feel its surface by pressing forward.
They’re checking for several things: the overall size of the gland, whether the surface is smooth or has hard lumps, whether the groove between the two lobes is intact, and whether pressing on the prostate causes pain. A normal prostate feels firm but slightly rubbery, similar to the fleshy base of your thumb. Hard spots, irregular textures, or tenderness all warrant further investigation.
The exam is uncomfortable but not typically painful. Most men describe it as a brief feeling of pressure. It’s over quickly, and you can return to normal activities immediately afterward.
What Happens If Results Are Abnormal
An elevated PSA or an unusual finding on a DRE doesn’t mean you have cancer. Many men with high PSA levels turn out to have benign conditions. But abnormal results do trigger a next step.
Increasingly, that next step is an MRI of the prostate rather than jumping straight to a biopsy. A major trial published in the New England Journal of Medicine tested a screening approach where men with PSA levels at or above 3 ng/mL received an MRI first. Only those whose MRI showed suspicious areas went on to a targeted biopsy, where small tissue samples are taken from specific spots. This MRI-first approach reduces the number of unnecessary biopsies and catches fewer slow-growing cancers that would never have caused harm, cutting down on overdiagnosis.
If a biopsy is needed, it’s the only way to confirm or rule out cancer. Tissue samples are examined under a microscope, and the results guide what happens next, whether that’s active monitoring, treatment, or simply reassurance that the tissue is normal.
How Often to Get Checked
Screening frequency depends on your initial PSA result. Men whose PSA comes back below 2.5 ng/mL can typically wait two years before their next test. Those with levels at 2.5 or above may be asked to return annually. Your doctor may also track your PSA velocity, meaning how fast the number climbs from one test to the next. A rapid rise can be more telling than any single reading.
The DRE is often done alongside the PSA test at these intervals, though some doctors have moved toward using it selectively rather than at every visit. The combination of both tests catches more problems than either one alone.