Digital Rectal Exam

A digital rectal exam (DRE) is a quick physical examination where a clinician inserts a gloved, lubricated finger into your rectum. This allows them to feel for any abnormalities in your lower rectum, anus, and nearby organs, such as the prostate gland in men. It is a common part of a routine physical check-up and helps screen for various health conditions.

What is Digital Rectal Exam?

A digital rectal exam (DRE) is a routine physical examination where a healthcare professional uses a gloved, lubricated finger to check the inside of your lower rectum and surrounding structures. This simple test helps clinicians feel for any unusual growths, tenderness, or changes in the texture and size of organs like the prostate gland in men. It is a quick procedure often performed during a general check-up.

During a digital rectal exam, your clinician carefully inserts one finger into your rectum. The term "digital" refers to the use of a finger. This allows them to manually feel for any lumps, masses, or other abnormalities that might not be visible from the outside. The exam also helps assess the tone of your anal muscles. The DRE is a valuable tool because it provides direct physical information about the lower part of your digestive tract and nearby organs. For men, it is particularly important for checking the prostate gland, which is located just in front of the rectum. For women, it can help assess the pelvic area and other structures. This examination is generally brief, lasting only a few seconds. While it might cause some temporary discomfort or a feeling of pressure, it is usually not painful. It is a non-invasive way to gather important diagnostic information that can guide further testing if needed.

Why it's ordered

A digital rectal exam (DRE) is ordered for several reasons, primarily to screen for certain health conditions and to assess symptoms related to the rectum or prostate. It is often part of a routine physical examination, especially for men over a certain age, to check for prostate cancer. Clinicians also use it to investigate symptoms like changes in bowel habits, rectal bleeding, or pelvic pain.

For men, one of the main reasons for a DRE is to screen for prostate cancer. The clinician can feel the prostate gland through the rectal wall to check for any enlargement, hardness, or lumps that could suggest cancer. However, it's important to note that a DRE is often used in combination with a blood test called a prostate-specific antigen (PSA) test for more comprehensive prostate cancer screening, as the DRE alone has limitations in detecting all cancers. The DRE is also used to detect other issues in the rectum and anus for both men and women. This includes checking for hemorrhoids (swollen veins in the anus or lower rectum), polyps (small growths on the lining of the colon or rectum), or other masses. It can also help assess the strength of the anal sphincter muscles, which is important for evaluating conditions like fecal incontinence. Furthermore, a clinician might order a DRE if you are experiencing symptoms such as unexplained rectal bleeding, changes in bowel habits, constipation, diarrhea, or pain in the lower abdomen or pelvis. The exam can help pinpoint the source of these symptoms or rule out certain conditions, guiding the next steps in your diagnosis and treatment.

How to prepare

Preparing for a digital rectal exam (DRE) is generally straightforward, as no special preparation is typically required. You usually do not need to change your diet or medications before the exam. However, your clinician might suggest emptying your bladder or bowels just before the procedure to enhance comfort and make the examination easier.

Most people do not need to do anything specific before a DRE. You can eat and drink as you normally would. It's not necessary to fast or take any laxatives. If you have any concerns about medications you are taking, especially blood thinners, you should discuss these with your clinician beforehand, although they rarely affect the DRE itself. Before the exam begins, your clinician or a nurse might ask if you need to use the restroom. Emptying your bladder can make the exam more comfortable, especially for men, as a full bladder can press on the prostate. Similarly, having an empty bowel can sometimes make the examination clearer for the clinician. It's always a good idea to communicate any anxieties or questions you have with your clinician before the exam. They can explain the procedure in more detail and help you feel more at ease. Remember, the DRE is a quick procedure designed to gather important health information.

What to expect during

During a digital rectal exam (DRE), you will typically be asked to assume a position that allows easy access to your rectum, such as lying on your side with knees bent or bending over an exam table. The clinician will then insert a gloved, lubricated finger into your rectum. You may feel a brief sensation of pressure or the urge to have a bowel movement, but the exam usually lasts only a few seconds.

Once you are in position, your clinician will gently spread your buttocks to visualize the anal area. They will then apply a small amount of lubricant to their gloved finger. They will slowly and carefully insert their finger into your rectum. The lubricant helps to minimize discomfort during insertion. As the clinician's finger is inside, they will rotate it to feel the walls of your rectum and any nearby structures. For men, they will specifically feel the prostate gland, checking its size, shape, and texture. They will be looking for any hard spots, lumps, tenderness, or other unusual findings. The entire process is very quick, often taking less than 10-15 seconds. While the exam is happening, you might feel a sensation of pressure, fullness, or a temporary urge to urinate or have a bowel movement. It is important to try and relax your muscles as much as possible, as this can make the exam more comfortable. If you experience any significant pain, you should immediately tell your clinician.

Understanding your results

After a digital rectal exam (DRE), your clinician will discuss the findings with you. A "normal" result means no abnormalities were felt, such as lumps, tenderness, or unusual changes in organ size or texture. An "abnormal" result indicates that something unusual was detected, but this does not automatically mean a serious condition like cancer. Your clinician will interpret these findings in the context of your overall health and other tests.

If your DRE results are normal, it means the clinician did not feel any concerning lumps, masses, or areas of tenderness. For men, a normal prostate would feel smooth, elastic, and of an appropriate size. This is generally reassuring, but it's important to remember that a DRE cannot detect all potential issues, especially very small ones or those located in areas not reachable by the finger. An abnormal finding might include feeling a lump, a hard area, tenderness, or an enlarged prostate. For example, an enlarged prostate in men could be due to benign prostatic hyperplasia (BPH), a common non-cancerous condition, or it could be a sign of prostate cancer. Similarly, a lump in the rectum could be a benign polyp, hemorrhoid, or a more serious growth. It is crucial to understand that an abnormal DRE result is not a diagnosis in itself. Instead, it indicates that further investigation may be needed. Your clinician will consider your symptoms, medical history, and the results of any other tests (like a PSA blood test for prostate concerns) to determine the next steps, which might include additional imaging, blood tests, or a biopsy.

Risks

The risks associated with a digital rectal exam (DRE) are minimal and the procedure is generally considered very safe. The most common experiences are temporary discomfort or a feeling of pressure during the exam. In rare cases, slight bleeding might occur, especially if you have hemorrhoids or other sensitive areas in the rectum.

Most people tolerate a DRE very well with no lasting side effects. The discomfort felt is usually brief and subsides immediately after the exam is over. It is not typically a painful procedure, though the sensation can be unfamiliar or slightly awkward. If you have pre-existing conditions such as hemorrhoids, anal fissures (small tears in the lining of the anus), or inflammatory bowel disease, there is a very small chance of experiencing minor bleeding after the exam. This bleeding is usually light and resolves quickly on its own. It's important to inform your clinician if you have any of these conditions before the DRE. Serious complications from a DRE are extremely rare. The benefits of detecting potential health issues early through this simple screening tool generally outweigh these minimal risks. If you have any concerns about the risks or discomfort, discuss them with your clinician before the exam.

Frequently asked questions

Is a digital rectal exam painful?

A digital rectal exam (DRE) is generally not painful, but you might experience a brief sensation of pressure or discomfort. This feeling is usually temporary and goes away quickly after the exam. It's important to try and relax your muscles to make the procedure as comfortable as possible.

How long does a digital rectal exam take?

A digital rectal exam (DRE) is a very quick procedure. The actual examination, where the clinician's finger is inserted, typically lasts only a few seconds, often less than 15 seconds. The entire appointment, including discussion, will take longer.

Is a DRE only for men?

No, a digital rectal exam (DRE) is not only for men. While it is commonly associated with prostate cancer screening in men, it is also performed on women to check for issues in the lower rectum, anus, and to assess pelvic structures or investigate symptoms like rectal bleeding or changes in bowel habits.

What does it mean if my clinician finds a lump during a DRE?

If your clinician finds a lump during a digital rectal exam (DRE), it means an abnormality was detected. This does not automatically mean cancer. Lumps can be caused by various conditions, such as benign polyps, hemorrhoids, or an enlarged prostate. Your clinician will discuss further tests needed to determine the exact cause.

Do I need to do anything special before a DRE?

No, you typically do not need to do anything special to prepare for a digital rectal exam (DRE). You can eat and drink normally. Your clinician might suggest emptying your bladder or bowels just before the exam to make it more comfortable, but no specific dietary changes or laxatives are usually required.

Can a DRE detect all prostate cancers?

A digital rectal exam (DRE) can help detect some prostate cancers, especially those located on the back of the prostate gland. However, it cannot detect all prostate cancers, particularly very small ones or those in areas not reachable by the finger. For more comprehensive screening, a DRE is often combined with a prostate-specific antigen (PSA) blood test.

Sources

• MedlinePlus — Digital Rectal Exam
• Mayo Clinic — Digital Rectal Exam
• Cochrane Library — Digital Rectal Exam