A digital rectal exam (DRE) is the standard first step a doctor uses to physically check your prostate. During the exam, the doctor inserts a gloved, lubricated finger into the rectum to feel the back portion of the prostate gland. This quick procedure helps the doctor assess the gland’s size, shape, and texture, and it is often done alongside a PSA blood test to screen for prostate issues.
Why Do Doctors Perform a Prostate Exam?
Doctors perform this exam to look for signs of prostate problems, including enlargement, inflammation, or cancer. The prostate is a small gland located just below the bladder and in front of the rectum. Because of its position, a doctor can feel part of it through the rectal wall.
The exam is a screening tool, not a final diagnosis. If the doctor feels something unusual, they will likely order more tests. Many men find the exam uncomfortable but not painful, and it usually takes less than a minute.
What Happens During the Exam?
You will likely be asked to stand, bend over a table, or lie on your side with your knees drawn toward your chest. The doctor will put on a glove, apply lubricant, and gently insert one finger into your rectum. They will press gently to feel the prostate through the rectal wall.
The doctor is checking for several things:
- Size: A normal prostate is about the size of a walnut, but it can enlarge with age.
- Texture: A healthy prostate feels smooth and firm. Hard or lumpy areas can be a concern.
- Symmetry: The gland should feel roughly the same on both sides.
- Tenderness: Pain during the exam can sometimes indicate inflammation or infection.
Most men describe the feeling as pressure or the urge to urinate. The entire exam typically takes 30 to 60 seconds.
What Does the Doctor Feel For?
The doctor is using their sense of touch to detect abnormalities. A normal prostate has a smooth, rubbery feel, similar to the tip of your nose. If the gland feels hard, like a knuckle, that is a red flag that warrants further investigation.
Nodules, or small hard bumps, can be a sign of cancer, but they can also be caused by other conditions like calcifications or prior infections. An enlarged but smooth prostate usually points to benign prostatic hyperplasia (BPH), a non-cancerous condition common in older men. A tender, boggy prostate may suggest prostatitis, which is inflammation of the gland.
It is important to understand that the DRE only examines the back and side of the prostate. The front portion cannot be felt this way, which is why the exam is not a complete picture on its own.
How Does a Doctor Check Your Prostate Alongside a PSA Test?
The digital rectal exam is almost always combined with a prostate-specific antigen (PSA) blood test. PSA is a protein produced by the prostate, and elevated levels can indicate cancer, inflammation, or enlargement. The DRE and PSA test look at different things: the DRE is physical, and the PSA is chemical.
Using both tests together provides a more complete assessment than either test alone. A normal DRE with a high PSA may prompt a biopsy. An abnormal DRE with a normal PSA may also prompt further testing. Doctors use the combination to decide who needs more investigation, such as an MRI or a biopsy.
Is the Exam Painful?
Most men do not find the exam painful, but it can be uncomfortable. The sensation is usually described as pressure or fullness in the rectum. Anxiety can make the exam feel worse, so it helps to breathe slowly and relax your shoulders.
If you have hemorrhoids or a fissure, tell your doctor beforehand. They can be more careful. You should also mention if you have any anal pain or bleeding. The exam should never be severely painful. If it is, tell the doctor to stop.
What Are the Risks and Side Effects?
The DRE is a very safe procedure with minimal risks. Some men may notice a small amount of blood in the stool or on the toilet paper afterward, especially if they have hemorrhoids. This is usually harmless.
There is no evidence that the exam causes cancer to spread. This is a common myth, but it is not supported by medical research. The procedure is considered safe for essentially all men, including those with heart conditions or other chronic illnesses.
When Should You Get a Prostate Exam?
Guidelines vary, but most organizations recommend discussing prostate screening with your doctor starting at age 50. If you are at higher risk, such as having a father or brother with prostate cancer, or if you are of African American descent, discussions often begin at age 45.
You should not wait for symptoms to have a baseline exam. Prostate cancer often has no symptoms in its early stages. However, if you experience difficulty urinating, blood in your urine, or persistent pain in your lower back or pelvis, see a doctor promptly. These symptoms do not automatically mean cancer, but they deserve medical attention.
Ultimately, the decision to screen is personal. Some men choose not to screen because of the risk of false positives and unnecessary biopsies. Talk to your doctor about the benefits and harms specific to your situation.
What Happens If the Doctor Finds Something Unusual?
An abnormal DRE does not mean you have cancer. It means the doctor felt something that does not look or feel normal. The next step is typically a referral to a urologist, a doctor who specializes in the urinary tract and male reproductive system.
The urologist may order an MRI to get a detailed image of the prostate. They may also recommend a biopsy, where small samples of tissue are taken and examined under a microscope. A biopsy is the only way to confirm a cancer diagnosis. Many men who have an abnormal DRE turn out to have benign conditions.
How Often Should You Have the Exam?
There is no single answer that fits everyone. The frequency depends on your age, your PSA level, and your previous exam results. A man with a normal DRE and a normal PSA may not need another exam for one to two years. A man with a slightly elevated PSA or a family history of prostate cancer may need one every year.
Your doctor will set a schedule based on your risk profile. The most important thing is to have a baseline exam so future changes can be detected. Regular screening is not about catching every cancer — it is about catching aggressive cancers while they are still treatable.
Can You Refuse the Exam?
Yes. The digital rectal exam is voluntary, and you can decline it at any time. Some men refuse because of embarrassment or discomfort, and that is their right. However, understand that refusing the DRE means your doctor has less information about your prostate health.
If you are uncomfortable, you can ask for a chaperone to be present. You can also ask the doctor to explain each step as they go. Many doctors will use a smaller finger or extra lubricant if you ask. It is your body, and you are in control of the exam.
Frequently Asked Questions
How long does a prostate exam take?
The physical exam itself takes about 30 to 60 seconds. The entire appointment, including discussion and the PSA blood draw, usually takes 15 to 20 minutes.
Can a doctor tell if you have prostate cancer from a digital rectal exam?
No. The DRE can detect suspicious lumps or hardness, but it cannot diagnose cancer. Only a biopsy can confirm whether cancer is present.
Do you need to empty your bladder before a prostate exam?
It is usually recommended to empty your bladder beforehand. A full bladder can make the exam more uncomfortable and can interfere with the doctor’s ability to feel the prostate clearly.
Is a prostate exam necessary if your PSA is normal?
Yes, because the two tests detect different things. A normal PSA does not guarantee a normal prostate, and some cancers do not raise PSA levels significantly.
