The presence of blood in the urine, medically known as hematuria, is a symptom that can cause immediate alarm in those who experience it. Its appearance should never be ignored. In men, the causes can be particularly specific, related to the prostate or the urinary tract.
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What is hematuria, or the presence of blood in the urine?
Hematuria is defined as the presence of red blood cells (erythrocytes) in the urine. The amount of blood does not necessarily correlate with the severity of the cause; even a small amount of blood, invisible to the naked eye (microscopic hematuria), can be significant. When there is injury or irritation to any part of the urinary system (kidneys, ureters, bladder, or urethra), blood may leak into the urine.
Types of hematuria
Macroscopic hematuria
Blood is visible to the naked eye. Urine may be pink, reddish, dark red, or even brown. This change in color is what usually alerts people and prompts them to seek medical attention.
Microscopic hematuria
The amount of blood is so small that it can only be detected through urinalysis or a reagent strip. The urine has a normal color, but the test reveals the presence of red blood cells.
Initial, terminal or total hematuria
This classification is based on the timing of urination when blood appears and can provide clues about the location of the problem.
If blood appears only at the beginning of urination, it usually indicates a problem in the urethra; if blood appears at the end of urination, it suggests a problem in the bladder or prostate; and if it is present throughout urination, it suggests a higher source, such as the kidneys or ureters.
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What can happen if a man urinates blood: Causes and risk factors
The causes of hematuria in men are numerous and can range from simple infections to serious diseases.
Urinary tract infections (UTI)
Men can also suffer from urinary tract infections. Cystitis (bladder infection) or pyelonephritis (kidney infection) can cause inflammation and bleeding in the lining of the urinary tract.
Kidney or bladder stones
Stones or calculi in the kidneys or bladder can irritate and injure the tissue of the urinary tract by rubbing against it or obstructing the flow of urine, causing hematuria, often accompanied by intense pain.
Enlarged prostate (Benign Prostatic Hyperplasia BPH)
It is a common condition in men over 50. An enlarged prostate gland compresses the urethra, making it difficult to completely empty the bladder. This can lead to infections, bladder irritation, and blood in the urine.
Prostatitis
Inflammation or infection of the prostate gland can cause hematuria, along with other symptoms such as pelvic pain, difficulty urinating, and fever.
Cancer
Bladder, kidney, or prostate cancer can manifest with hematuria (blood in the urine). It is more common in older men, smokers, or those with a family history of the disease.
Trauma
A hard blow to the back, abdominal area, or kidneys can cause internal injuries and bleeding in the urinary tract.
Strenuous physical exercise (Hematuria due to exertion)
Running long distances or engaging in strenuous physical activity can cause hematuria (blood in the urine). This is thought to be due to dehydration, repetitive trauma to the bladder, or the breakdown of red blood cells. It is usually temporary and resolves within 24 to 48 hours.
Pharmaceutical products
Certain drugs such as anticoagulants, non-steroidal anti-inflammatory drugs, and some antibiotics can increase the risk of bleeding, including hematuria.
Kidney diseases
Diseases such as glomerulonephritis (inflammation of the kidney's filtering units) can cause hematuria. These conditions are often associated with systemic diseases such as diabetes or hypertension.
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Symptom
Dysuria
Pain or burning when urinating is usually associated with urinary tract infections or prostatitis.
Abdominal, pelvic, or lower back pain
Intense flank pain that radiates to the groin is very characteristic of kidney stones. Pelvic or lower abdominal pain may indicate a problem with the bladder or prostate.
Urgent and frequent need to urinate
It is a common symptom in bladder infections, prostatitis, and enlarged prostate.
Difficulty starting urination or weak flow
These symptoms point directly to a prostate problem, such as BPH.
Fever and chills
The presence of fever suggests an infection, such as pyelonephritis or acute prostatitis, which require immediate attention.
Blood clots in the urine
The presence of clots may be indicative of more active bleeding and requires urgent evaluation.
Medical diagnosis and evaluation
Medical history and physical examination
The doctor will ask about symptoms, habits, medications you take, history of trauma, and will perform a physical exam, which may include a digital rectal exam to assess the size and consistency of the prostate.
Urine analysis
It confirms the presence of blood and can detect signs of infection or proteins that suggest kidney disease.
Blood Tests
They can measure kidney function and assess prostate health using Prostate Specific Antigen (PSA), an important marker for ruling out prostate cancer.
imaging studies
Abdominal/renal ultrasound allows visualization of the kidneys and bladder to look for stones, tumors, or blockages. Computed tomography (CT) provides more detailed images and is especially useful for detecting small stones and evaluating the entire urinary tract.
Cytoscopy
A thin tube with a camera (cystoscope) is inserted through the urethra to visualize the inside of the bladder and urethra. This is crucial for diagnosing bladder cancer, inflammation, or other abnormalities.
Warning signs, when should I worry?
You should seek immediate medical attention if hematuria is accompanied by high fever and chills, severe lower back or abdominal pain, inability to urinate or passing only small amounts, persistent nausea and vomiting, unintentional weight loss without apparent cause, and large blood clots in the urine.
Even if hematuria is painless and goes away on its own, it should always be evaluated by a doctor, as it may be a sign of urological cancer in its early stages.
Treatments according to the cause
Infections
Specific antibiotics are prescribed for the causative bacteria.
Kidney stones
Treatment can range from pain management and plenty of hydration to facilitate the expulsion of small stones, to procedures such as lithotripsy (shock waves to break up stones) or surgery.
Enlarged prostate (BPH)
Medications such as alpha-blockers (which relax the prostate muscles) or 5-alpha reductase inhibitors (which reduce the size of the prostate) are used. In severe cases, surgery may be necessary.
For cancer
Treatment is multidisciplinary and may include surgery, chemotherapy, radiotherapy, or immunotherapy, depending on the type, stage, and location of the tumor.
For hematuria due to exertion
It generally does not require treatment and resolves with rest and hydration. Evaluation of exercise technique and hydration is recommended.
For kidney diseases (glomerulonephritis)
Treatment focuses on controlling the underlying disease and may include immunosuppressant drugs.
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Tips to prevent blood in urine
adequate hydration
Drinking plenty of water (1.5 to 2 liters a day) helps dilute urine and eliminate bacteria and mineral salts that can form stones.
Balance diet
Reducing your intake of salt, animal protein, and foods high in oxalates may help prevent the formation of kidney stones.
No Smoking
Smoking is the most important risk factor for bladder cancer.
Exercise with caution.
Staying hydrated during physical activity and emptying your bladder before exercise can prevent exertional hematuria.
Good genital hygiene
This helps prevent urinary tract infections.
Regular medical check-ups
Especially for men over 50, regular urological checkups that include a urine test and prostate evaluation are essential for detecting problems.
Frequently Asked Questions (FAQs)
What should I avoid eating if I have blood in my urine?
It's advisable to avoid foods that can irritate the bladder, such as spicy foods, caffeine, alcohol, and excessive citrus fruits. If the cause is bladder stones, your doctor will give you specific dietary recommendations.
What does it mean to have blood in your urine without pain?
Painless hematuria should not be ignored. Although it can be due to benign causes, it is the most common symptom of bladder or kidney cancer and requires a thorough urological evaluation to rule out these possibilities.
What does it mean to have blood in your urine after urinating?
If you notice blood on the toilet paper or in the last drop of urine, it may be terminal hematuria, which usually indicates a problem in the bladder (tumor or infection) or in the prostate (BPH or prostatitis).
Can I experience hematuria from physical exertion?
Yes, it's a known and generally benign cause. It usually resolves on its own within 24 to 72 hours with rest and hydration. But if it persists, you should consult a doctor to rule out other causes.
How long does it take for hematuria to go away?
It depends on the cause. Hematuria due to exertion may resolve in 1-3 days. If it's due to an infection, it will resolve in 1-2 days after starting antibiotics. If it's due to a kidney stone, it will resolve once the stone is passed or treated. Hematuria due to chronic problems or cancer will persist until the underlying condition is treated.
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and discuss your case with one of our medical specialists, no strings attached.
Conclusion
The presence of blood in the urine in men is a symptom that deserves your full attention; its appearance always warrants a medical consultation. Early diagnosis is the most powerful tool for effective treatment and a favorable prognosis. Do not ignore this sign, as your urological health may depend on it.
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