How to check for an enlarged prostate at home

You cannot reliably check for an enlarged prostate at home. The gland sits inside the pelvis, and checking it requires a clinician’s assessment, not pressing on your abdomen or inserting a finger into your rectum. At home, you can keep a clear record of urinary changes and bring it to a healthcare professional. Seek prompt care if you cannot urinate, see blood in your urine, have fever with urinary pain, or notice rapidly worsening symptoms.

Many men search “how to check prostate” because their stream has changed or they are waking more often at night. Those changes deserve a calm evaluation, but they do not prove that the prostate is enlarged. Lower urinary tract symptoms can come from more than one source, and the AUA guideline recommends a patient-specific workup.

What you can safely track at home

For several days, make brief notes about the symptoms that concern you. You can record how often you urinate, whether you wake at night, whether it is difficult to start, and whether the stream stops and starts. Note urgency, leakage, pain, burning, or a feeling that the bladder has not emptied. Include when you drink fluids, caffeine, or alcohol, and list medicines and supplements. This is not a diagnostic test; it helps you give your clinician a useful timeline.

Note this	Why it can help your appointment
Approximate time and frequency of urination	Shows the pattern, including night waking
Whether starting or maintaining the stream is difficult	Describes a voiding symptom clearly
Pain, burning, blood, fever, or inability to urinate	Flags symptoms that can need quicker care
Medicines, cold remedies, supplements, and timing	Gives the clinician context for reviewing possible contributors
When symptoms began and what has changed	Helps distinguish stable symptoms from worsening ones

Do not intentionally dehydrate yourself to reduce bathroom visits. Do not try a prostate “self exam,” use a household object, or follow online instructions for inserting a finger. A home exam cannot assess prostate size consistently or determine whether a finding is benign. A colonoscopy also does not check the prostate: it examines the colon and rectum from inside the bowel, while a DRE is a separate exam performed through the rectum to feel part of the prostate.

Keep the notes simple enough that you will actually use them. You do not need to measure every ounce or turn each bathroom visit into a test. A few days of ordinary routine can show whether symptoms cluster after particular drinks or at particular times. If you notice a pattern, report it as an observation rather than assuming it proves a cause. For example, “I have been waking twice most nights for three weeks” gives a clinician a clearer starting point than “my prostate is enlarged.”

It can also help to distinguish storage symptoms from emptying symptoms. Storage symptoms include urgency, frequent urination, or waking at night. Emptying symptoms include a delayed start, a weak or interrupted stream, and a sense of incomplete emptying. These descriptions do not identify the source by themselves, but they help you explain what you mean. The AUA guideline covers lower urinary tract symptoms as a group that calls for assessment in context.

When should you get a prostate check?

There is no single age at which every man needs the same prostate exam. The right conversation depends on symptoms, family history, personal risk factors, and what a test could mean for you. If symptoms are bothering you, you can ask for an evaluation at any age rather than waiting for a birthday threshold. For screening questions, review the PSA test guide for men over 50 and discuss benefits and limits with your clinician.

A clinician may ask about urinary symptoms, medical history, and medicines; perform an examination; and consider urine or blood tests. A DRE may be part of an evaluation, but it is only one piece. It cannot measure the whole prostate and cannot by itself rule out a problem. A 2023 analysis within the PROBASE screening trial found that stand-alone DRE had poor screening performance in 45-year-old men (study). That finding addresses screening in that age group, not every reason a clinician may examine a symptomatic patient.

The AUA guideline describes BPH as a tissue diagnosis and emphasizes individual factors in workup and management (guideline). The ACR criteria likewise describe focused history and physician examination as part of evaluation; they note that prostate MRI is usually not an initial test for uncomplicated symptoms suspected to be related to BPH.

Does a colonoscopy check your prostate?

No. Colonoscopy examines the lining of the colon and rectum with a flexible camera. It is not a prostate test. A DRE, by contrast, uses a gloved finger in the rectum to feel the back surface of the prostate. It is brief, performed by a healthcare professional, and may be offered for a specific clinical reason.

Even though both involve the rectum, they answer different questions. A colonoscopy does not assess prostate size or urinary flow. If you have an upcoming colonoscopy and urinary symptoms, mention them separately to your care team. For more on the exam itself, see what a prostate exam is and what to expect and prostate exam vs colonoscopy.

Warning signs that need medical care

Get prompt medical help if you are unable to urinate. Contact a clinician promptly for visible blood in urine, painful urination, fever or chills with urinary symptoms, repeated urinary infections, or a sudden worsening in your ability to pass urine. These symptoms have multiple possible causes and need assessment rather than an at-home prostate check. BPH complication reviews discuss retention, infection, hematuria, bladder stones, and kidney effects among issues that may need care (review).

If the main symptom is waking at night, you may find nighttime urination after 50 helpful. If you have a weak stream, read weak urine stream in men over 50. These guides can help you describe what is happening, but they do not replace an appointment.

What about supplements?

Supplements cannot check prostate size, explain the cause of symptoms, or replace medical assessment. Research on individual ingredients varies, and the product label matters. Our prostate supplements comparison lays out what our reviews found; our scores are strict and should not be read as a prediction of personal results. You can also read our TitanFlow review, the highest-rated urinary label in this group.

Talk to your doctor before taking a supplement, especially if you use prescription medicines. Results vary, and new or worsening symptoms deserve medical care.

The most useful thing you can do at home is track your symptoms in a structured way. Our IPSS prostate symptom score uses the standard questionnaire doctors use and lets you print your answers for your appointment.

Frequently asked questions

How can I tell if my prostate is enlarged?

You cannot tell reliably at home. A clinician considers symptoms and may use an examination or tests based on your history.

Can I do a prostate self-check with a finger?

That is not a reliable way to assess the gland. Do not insert objects or follow home-exam instructions; ask a clinician about the appropriate evaluation.

Does a colonoscopy check the prostate?

No. Colonoscopy examines the bowel. A DRE is a separate clinical exam that may be used to feel part of the prostate.

At what age should I check my prostate?

Age alone does not set one universal schedule. Discuss screening based on your personal risk, preferences, and symptoms.

What if I cannot urinate?

Seek urgent medical care. Acute inability to pass urine needs prompt assessment.

Next step

If you have new urinary changes, keep a short symptom and medication record and book a visit with your clinician. For background, start with enlarged prostate symptoms.