Seeing blood in urine can be alarming. In men, it may appear as pink, red, or brown urine, or it may only be detected under a microscope during a urine test. While blood in urine does not always mean something serious, it should never be ignored. It can be a sign of a minor issue such as exercise or infection, or it may point to a more serious condition involving the kidneys, bladder, prostate, or urinary tract.
Understanding the possible causes, risks, and warning signs can help men know when to monitor symptoms and when to seek medical care right away. In many cases, the term blood in urine in men is used for a symptom rather than a diagnosis, which is why finding the cause matters.
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What Does Blood in Urine Mean?
Blood in urine is called hematuria. There are two main types:
- Gross hematuria: blood is visible in the urine, making it look pink, red, or cola-colored
- Microscopic hematuria: blood is present but only seen on a lab test
Sometimes the color change is caused by something other than blood, such as certain foods, medications, or dehydration. But if blood is confirmed, it always deserves medical attention. When men notice blood in urine in men concerns for the first time, the next step should be to check whether the change is temporary or linked to another symptom.
Common Causes of Blood in Urine in Men
Blood in the urine can come from any part of the urinary system, including the kidneys, ureters, bladder, prostate, or urethra. The cause can range from harmless to serious.
Because blood in urine in men can come from different areas of the urinary tract, doctors often look at the full symptom pattern instead of the urine color alone.
1. Urinary Tract Infection (UTI)
UTIs are less common in men than in women, but they can happen. A UTI may irritate the urinary tract and cause blood in the urine along with:
- Burning during urination
- Frequent urge to urinate
- Cloudy or foul-smelling urine
- Lower abdominal discomfort
In men, a UTI may sometimes be linked to an enlarged prostate or another underlying issue. If infection is the cause of blood in urine in men, treatment usually improves symptoms fairly quickly.
2. Kidney Stones
Kidney stones can scrape the lining of the urinary tract as they move, causing bleeding. Other symptoms often include:
- Severe pain in the side, back, or lower abdomen
- Pain that comes and goes
- Nausea or vomiting
- Difficulty passing urine
Blood in urine from kidney stones may be visible or microscopic. A stone can also cause blood in urine in men even before the pain becomes severe.
3. Enlarged Prostate
An enlarged prostate, also called benign prostatic hyperplasia (BPH), is common in older men. While BPH itself does not always cause blood in the urine, it can lead to urinary problems that increase the risk of irritation, infection, or bleeding.
Symptoms may include:
- Weak urine stream
- Trouble starting urination
- Frequent urination, especially at night
- Incomplete bladder emptying
Because the prostate sits near the bladder and urethra, blood in urine in men with BPH may need testing to rule out another problem.
4. Prostate Infection or Inflammation
Prostatitis, or inflammation of the prostate, can cause blood in urine along with:
- Pain in the lower back, pelvis, or genitals
- Painful urination
- Fever or chills
- Difficulty urinating
This condition can be caused by infection or other inflammatory processes. In some cases, blood in urine in men is one of the first clues that the prostate is irritated.
5. Kidney Disease
Problems affecting the kidneys, such as glomerulonephritis or other kidney disorders, may cause blood to leak into the urine. This may happen with:
- Swelling in the legs or face
- High blood pressure
- Foamy urine
- Reduced urine output
Kidney-related blood in the urine often needs prompt medical evaluation. When kidney disease causes blood in urine in men, it may also affect protein levels, blood pressure, and overall kidney function.
6. Injury or Trauma
An injury to the kidneys, bladder, or genitals can cause bleeding in the urinary tract. This may happen after:
- A car accident
- Sports injury
- Falls
- Direct impact to the lower abdomen or back
Even if symptoms seem mild, urinary bleeding after trauma should be checked. Visible blood in urine in men after an accident should never be brushed off as minor without medical advice.
7. Vigorous Exercise
Intense physical activity, especially long-distance running or high-impact sports, can sometimes lead to temporary blood in urine. This is often called exercise-induced hematuria. It usually clears up after rest, but persistent blood in urine still needs evaluation.
If blood in urine in men happens only after heavy exercise and goes away quickly, it may be less concerning, but repeat episodes still deserve a checkup.
8. Medications
Some medications can increase bleeding risk or irritate the urinary tract. Examples include:
- Blood thinners such as warfarin or apixaban
- Aspirin
- Some anti-inflammatory drugs
- Certain antibiotics or other medicines in rare cases
If medication may be involved, a doctor should still determine whether there is another cause. Drug-related blood in urine in men should not be assumed without proper evaluation.
9. Cancer of the Urinary Tract
Blood in urine can be an early sign of cancer affecting the bladder, kidneys, or prostate. It is not the most common cause, but it is one of the most important to rule out, especially in older men or men with risk factors such as smoking.
Possible signs may include:
- Visible blood in urine without pain
- Frequent urination
- Pain during urination
- Unexplained weight loss
- Ongoing urinary changes
Because cancer can develop without many early symptoms, persistent hematuria should be evaluated. This is one reason blood in urine in men is considered a symptom that always deserves follow-up.
10. Sexually Transmitted Infections
Some sexually transmitted infections can cause inflammation of the urethra and lead to blood in urine, especially if there is also:
- Burning when urinating
- Penile discharge
- Itching or irritation
- Pain during sex
In younger sexually active men, this is another possible explanation for blood in urine in men, especially when urinary symptoms are paired with discharge or urethral irritation.
Is Blood in Urine in Men Always Serious?
Not always, but it should always be taken seriously.
In some cases, the cause is temporary and treatable, such as a UTI or kidney stone. In other cases, blood in urine may be the first sign of a condition that needs long-term management or urgent treatment.
Even when there is no pain, visible blood in urine should not be ignored. Painless blood in urine can sometimes be linked to more serious conditions, including bladder or kidney cancer. That is why blood in urine in men deserves medical attention even when symptoms seem mild.
For a broader overview of urinary symptoms and infection-related concerns, you may also find this guide on bladder infection vs UTI helpful.
When Should Men See a Doctor?
Men should contact a doctor if they notice:
- Any visible blood in the urine
- Blood in urine that keeps coming back
- Painful urination
- Side, back, or lower abdominal pain
- Fever, chills, or signs of infection
- Trouble urinating
- Swelling in the legs or face
- Unexplained weight loss
- Blood in urine after an injury
If blood is found on a urine test but not visible, medical evaluation is still recommended, especially if it persists. Recurrent blood in urine in men should be checked even if the urine looks normal between episodes.
For official symptom guidance, the National Institute of Diabetes and Digestive and Kidney Diseases hematuria overview explains when blood in urine needs medical evaluation.
When Is It an Emergency?
Seek urgent medical care right away if blood in urine occurs with:
- Inability to urinate
- Severe pain in the back, side, or abdomen
- Heavy bleeding or clots in the urine
- Fever with shaking chills
- Dizziness or fainting
- Recent serious injury
- Confusion or weakness
These symptoms may signal a blocked urinary tract, serious infection, significant bleeding, or trauma. Emergency evaluation is especially important when blood in urine in men appears suddenly with clots or severe pain.
How Doctors Diagnose the Cause
To find out why there is blood in the urine, a doctor may ask about symptoms, medications, exercise, injuries, and medical history. Common tests may include:
- Urinalysis to confirm blood and check for infection
- Urine culture to look for bacteria
- Blood tests to assess kidney function
- Imaging tests such as ultrasound or CT scan
- Cystoscopy to examine the bladder and urethra
- Prostate evaluation if prostate disease is suspected
The exact tests depend on age, symptoms, and risk factors. In many cases, diagnosis begins with confirming whether the blood in urine in men is visible, microscopic, or linked to another urinary problem.
Treatment Depends on the Cause
Treatment for blood in urine in men depends entirely on the underlying cause.
- UTIs are usually treated with antibiotics
- Kidney stones may pass on their own or require medication or procedures
- Prostate problems may be managed with medication or other treatments
- Kidney disease may require ongoing specialist care
- Injuries may need urgent treatment
- Cancer may require surgery, chemotherapy, radiation, or other therapies
Because treatment varies so much, identifying the cause is the most important step. The right treatment for blood in urine in men depends on where the bleeding starts and whether there are other signs of illness.
Can Blood in Urine Go Away on Its Own?
Sometimes, yes. For example, mild exercise-related hematuria may resolve after rest. However, men should not assume the issue is harmless without evaluation, especially if:
- The blood is visible
- It happens more than once
- There are other symptoms
- The man is over 40
- There is a history of smoking or urinary problems
Temporary improvement does not always mean the cause is gone. Even if blood in urine in men disappears, the underlying issue may still need treatment or monitoring.
How to Reduce Risk
Not all causes can be prevented, but these habits may help lower risk:
- Drink enough water
- Treat urinary infections early
- Avoid smoking
- Use medications only as directed
- Protect against injury during sports or physical work
- Get regular medical checkups, especially with prostate or kidney concerns
Healthy habits can lower the chance of some common triggers, but they cannot eliminate every cause of blood in urine in men. Persistent symptoms still need medical review.
Frequently Asked Questions
What does blood in urine look like?
It may look pink, red, brown, or tea-colored. Sometimes there are clots. In microscopic hematuria, the urine looks normal but blood is found on testing.
Can dehydration cause blood in urine?
Dehydration can make urine darker, but it does not usually cause true blood in the urine. A medical evaluation is still important if blood is suspected.
Does blood in urine mean kidney disease?
Not always. Kidney disease is one possible cause, but infections, stones, prostate problems, and other conditions are also common.
Should I wait to see if it goes away?
If the blood is visible, it is better to seek medical advice promptly rather than wait. Recurrent or painless blood in urine should be checked even if it disappears.
Can exercise cause blood in urine?
Yes, strenuous exercise can sometimes cause temporary hematuria. Still, persistent blood should be evaluated to rule out other causes.
The Bottom Line
Blood in Urine in Men can have many causes, from minor irritation to serious disease. Common causes include urinary tract infection, kidney stones, prostate problems, kidney disease, trauma, medications, and cancer. Because the symptom can signal a wide range of conditions, it should never be dismissed.
If you notice blood in urine, especially if it is visible, recurrent, painful, or linked to other symptoms, see a doctor promptly. Early evaluation can identify the cause and help prevent complications. When in doubt, treat blood in urine in men as a symptom that needs attention rather than something to watch passively.
