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Understanding Blood in Urine (Hematuria) in Singapore

Discovering blood in your urine can be concerning and may prompt questions about your health. Whether you’ve noticed a pink, red, or cola-coloured tinge to your urine, or blood was detected during a routine medical test, understanding the underlying cause is essential for your health.

Haematuria, the medical term for blood in urine, can affect individuals and can range from conditions that may resolve on their own to those requiring medical attention. ​​Dr Azhari can help diagnose and treat the various causes of haematuria, providing comprehensive care tailored to your specific condition. Individual results and timelines may vary.

Dr. Nor Azhari Bin Mohd Zam
Dr. Nor Azhari Bin Mohd Zam

MBBS (NUS)|MRCS (Edin.)|MMed Surgery (NUS)|FAMS (Urology)

urology and treatment of kidney disease doctor an 2025 09 14 15 27 00 utc (1) Understanding Blood in Urine (Hematuria) in Singapore

What is Hematuria?

Haematuria refers to the presence of red blood cells in urine, which can originate from any part of the urinary system—the kidneys, ureters, bladder, or urethra. This condition is classified into two main categories: gross haematuria (visible blood that changes the urine colour) and microscopic haematuria (blood cells detectable only through laboratory testing). While often benign, haematuria warrants proper medical evaluation to rule out underlying conditions.

Types of Hematuria

Gross Hematuria

Gross hematuria presents as visibly discoloured urine that may appear pink, red, or dark brown like cola or tea. Small amounts of blood in urine can cause noticeable colour changes. This type often prompts immediate medical consultation due to its alarming appearance. The intensity of colour doesn’t necessarily correlate with the severity of the underlying condition.

Microscopic Hematuria

Microscopic hematuria refers to blood cells in urine that are invisible to the naked eye and can only be detected through urinalysis. This type is often discovered incidentally during routine health screenings or during investigations of other symptoms. Although microscopic hematuria is invisible, it requires the same thorough evaluation as gross hematuria to determine its cause.

Persistent vs Transient Hematuria

Persistent hematuria on multiple urine tests typically indicates an ongoing condition that may require treatment. Transient hematuria may appear temporarily and resolve on its own, often related to strenuous exercise, minor infections, or certain medications. Even transient hematuria should be evaluated to exclude serious underlying pathology.

Causes & Risk Factors

Common Causes

Urinary tract infections (UTIs) are a frequent cause of hematuria, particularly among women. Kidney stones can cause bleeding when crystal edges contact the urinary tract lining during passage. Benign prostatic hyperplasia (BPH) in men may lead to hematuria due to enlarged prostate blood vessels. Bladder or kidney inflammation (cystitis or nephritis) from various causes, including autoimmune conditions, can lead to blood in the urine.

Certain medications, including blood thinners like aspirin or warfarin, may increase bleeding risk throughout the body, including the urinary system. Vigorous exercise, particularly long-distance running, can cause exercise-induced hematuria through bladder trauma or dehydration effects. Recent urological procedures or catheter insertion may cause temporary bleeding during the healing process.

Risk Factors

Advancing age may increase hematuria risk due to higher rates of prostate issues in men and post-menopausal changes in women. A family history of kidney disease or urinary cancers may increase an individual’s risk. Smoking is associated with increased risk of bladder cancer, a potential cause of hematuria. Recent upper respiratory infections can trigger post-infectious glomerulonephritis. Chronic conditions like diabetes or hypertension can affect the kidney blood vessels over time. Occupational exposure to certain chemicals in industries such as rubber, leather, or dye manufacturing may increase the risk of bladder cancer.

Serious Underlying Causes: Bladder cancer, though less common, should be evaluated, especially in patients with persistent hematuria. Kidney cancer can present with painless hematuria as an early symptom. Glomerulonephritis, an inflammation of the kidney filters, may indicate kidney disease and require medical evaluation. Blood disorders affecting clotting, such as haemophilia or sickle cell disease, can manifest as haematuria.

Signs & Symptoms

Visible Blood (Gross Haematuria)
  • Pink, red, or brownish urine colour
  • Blood clots in the urine stream
  • Colour changes that come and go
  • Urine that looks like cola or tea
  • Red or pink toilet water after urination
Associated Urinary Symptoms
  • Burning sensation during urination
  • Frequent urge to urinate
  • Difficulty starting or maintaining urine flow
  • Feeling of incomplete bladder emptying
  • Nighttime urination frequency increases
Pain-Related Symptoms
  • Lower abdominal or pelvic discomfort
  • Flank pain (side of body between ribs and hip)
  • Back pain, especially lower back
  • Sharp, cramping pain suggesting kidney stones
  • Dull, persistent ache in the kidney area
Systemic Symptoms
  • Fever and chills (suggesting infection)
  • Unexplained weight loss
  • Fatigue or weakness
  • Loss of appetite
  • Swelling in legs or ankles

Haematuria symptoms vary significantly depending on the underlying cause. Some patients experience painless haematuria with no other symptoms, whilst others may have multiple accompanying signs that help identify the source of bleeding.

Experiencing these symptoms? Consider seeking medical evaluation.

Consult with Dr Azhari for proper assessment and treatment options.

When to See a Urologist

Seek immediate medical attention if you notice visible blood in your urine, even if it occurs just once and disappears. Get emergency care if blood in urine comes with severe pain, inability to urinate, fever above 38.5°C, or heavy bleeding with large clots. These symptoms may indicate severe conditions requiring urgent treatment.

Book a consultation promptly if you have persistent microscopic blood in urine detected in multiple tests, unexplained weight loss, recurring UTI symptoms, or new blood in urine. Early evaluation can help with appropriate assessment and management.

During your first consultation, a urologist can review your detailed medical history, focusing on the onset of symptoms, medications, family history, and risk factors. A physical examination includes abdominal and flank assessment, and for men, a prostate examination may be performed. The consultation typically lasts 30-45 minutes, allowing for a thorough evaluation and discussion of next steps. Bring any previous test results, current medication lists, and prepare questions about your concerns.

Diagnosis & Testing Methods

  • Urinalysis and Urine Culture: The initial diagnostic step involves a comprehensive urinalysis to confirm the presence of infection markers, assess protein levels, and identify abnormal cells. Urine culture determines if bacteria are present and identifies specific organisms for targeted antibiotic treatment. These tests require a clean-catch midstream urine sample.
  • Blood Tests: A complete blood count (CBC) assesses overall health and screens for anaemia due to chronic blood loss. Kidney function tests, including creatinine and blood urea nitrogen, evaluate kidney health. Coagulation studies may be ordered if a bleeding disorder is suspected. PSA (prostate-specific antigen) testing in men helps screen for prostate issues.
  • Imaging Studies: Ultrasound examination provides non-invasive visualisation of the kidneys, bladder, and surrounding structures without radiation exposure. CT urography offers detailed cross-sectional images of the entire urinary system and can identify stones, tumours, and anatomical abnormalities. MRI may be recommended for patients who cannot undergo CT scanning or for whom soft-tissue detail is required.
  • Cystoscopy: This procedure involves inserting a thin, flexible camera through the urethra to directly visualise the bladder interior and urethra. Cystoscopy can identify bladder tumours, stones, inflammation, or structural abnormalities not visible on imaging. The procedure can be performed in-clinic with a local anaesthetic. Patients may experience mild discomfort during the procedure.
  • Urine Cytology: Microscopic examination of urine cells helps detect cancerous or pre-cancerous cells shed from the urinary tract lining. This test can help identify bladder cancer. Multiple samples over several days may be requested to improve diagnostic accuracy.

Treatment Options Overview

Treatment will depend on the underlying disorder, which can range from simple advice to drink more fluids to flush the urinary system or taking medications to treat an infection. If a urinary stone or tumour is detected, a specialised surgical procedure may be required.

Every patient’s condition is unique.

Dr Azhari can assess your specific situation and discuss treatment options that may be suitable for you.

Complications if Left Untreated

Untreated urinary problems may progress beyond inconvenience to serious health complications. Chronic urinary retention may damage the bladder muscle, potentially leading to reduced contractility. This could lead to a need for catheterisation or bladder dysfunction requiring ongoing management.

Repeated UTIs from incomplete bladder emptying can ascend to the kidneys, potentially causing pyelonephritis (kidney infection). Chronic kidney infections may result in kidney damage, reduced function, or kidney failure that could require dialysis. Bladder stones may form when urine stagnates, potentially causing pain, bleeding, and further obstruction.

Quality of life may deteriorate without treatment. Sleep disruption from nocturia (night-time urination) can affect cognitive function and work performance. Social limitations often occur as people may restrict activities due to incontinence concerns. Depression and anxiety can be associated with untreated urinary symptoms.

Skin breakdown and infections may develop from prolonged exposure to moisture in severe incontinence. Early treatment aims to prevent these potential complications and help preserve both physical health and emotional well-being.

Prevention

Whilst not all urinary problems are preventable, lifestyle changes may help reduce risk and severity. Maintain healthy fluid intake of approximately 1.5-2 litres daily, spacing consumption throughout the day rather than large amounts at once. Consider reducing bladder irritants, such as caffeine, alcohol, and spicy foods, if you notice a correlation between symptoms and these foods.

Pelvic floor exercises may help strengthen muscles supporting bladder control. Both men and women may benefit from regular Kegel exercises, particularly after childbirth or prostate surgery. Proper technique is essential – consider physiotherapy guidance initially. Maintaining a healthy weight may help reduce pressure on pelvic organs and support overall urological health.

Practise good bathroom habits by urinating when you feel the urge rather than holding it for too long. Aim to empty your bladder, taking time rather than rushing. Women may wipe front to back and urinate after intercourse to help prevent UTIs. Appropriately managing chronic conditions like diabetes may help prevent nerve damage that affects bladder function. Consider stopping smoking, as it may increase bladder cancer risk and could worsen incontinence. Regular medical check-ups allow early detection and intervention before symptoms become severe.

Frequently Asked Questions

How common are urinary problems in Singapore, and am I alone in experiencing these symptoms?

Urinary problems are common in Singapore, affecting many adults at some point in their lives. You’re not alone, and urologists treat these conditions regularly. Many patients delay seeking help due to embarrassment, but Dr Azhari views these as routine medical issues requiring proper evaluation.

Can urinary problems resolve on their own without treatment?

While mild, temporary urinary symptoms from factors like dehydration or minor infections might improve independently, persistent symptoms lasting more than two weeks typically require medical evaluation. Most underlying causes of chronic urinary problems, such as prostate enlargement or bladder dysfunction, may worsen without treatment. Early intervention often means simpler treatment options and potentially improved outcomes, whereas waiting can lead to complications requiring more invasive procedures.

What’s the difference between normal ageing and urinary problems requiring treatment?

Although urinary changes can occur with ageing, problematic symptoms are not inevitable or untreatable. Normal ageing might involve slightly decreased bladder capacity or mild prostate enlargement. However, symptoms significantly impacting sleep, daily activities, or quality of life warrant evaluation. Waking more than twice nightly, incontinence, pain, or inability to empty your bladder are not normal ageing and may be assessed by a urologist.

How long does treatment for urinary problems typically take to show results?

Treatment timelines vary depending on the condition and chosen therapy. Medications like alpha-blockers may improve symptoms, while 5-alpha reductase inhibitors may take longer to have an effect. Behavioural modifications and pelvic floor exercises typically show benefits with consistent practice. Minimally invasive procedures may provide improvement, though recovery may take time. Your urologist can provide realistic timelines based on your specific treatment plan.

Will I need surgery for my urinary problems?

Most urinary problems may respond to conservative treatments, including medications, lifestyle modifications, and minimally invasive procedures. Surgery is typically reserved for severe cases, failed medical management, or specific conditions like large prostate enlargement or significant anatomical abnormalities. Urologists typically explore less invasive options first, recommending surgery only when clearly beneficial. Modern surgical techniques are less invasive than traditional approaches, with shorter recovery times.

Can women experience prostate-related urinary problems?

Women don’t have prostates, so they cannot experience prostate-specific conditions like BPH. However, women commonly experience other urinary problems, including overactive bladder, stress incontinence, UTIs, and pelvic organ prolapse. The female urethra is shorter, making UTIs more common, while pregnancy and childbirth can affect pelvic floor strength. Urologists provide care for both male and female urinary conditions, with treatments tailored to each gender’s anatomy.

What should I expect during my first urology consultation?

Your first consultation involves a confidential discussion about your symptoms, medical history, and how symptoms affect your daily life. The urologist can perform a focused physical examination, which may include abdominal and genital examinations and a digital rectal examination for men, if indicated. Basic tests, such as urinalysis, may be performed. The consultation allows a thorough assessment and discussion of treatment options. You’ll receive information about your condition and potential treatment approaches.

Are there any new treatments for urinary problems available in Singapore?

Singapore’s healthcare system provides access to contemporary urological treatments, including prostatic urethral lift (UroLift), water vapour therapy (Rezum), and various laser technologies for prostate treatment. Newer medications, neuromodulation techniques, and regenerative medicine approaches are also available. Urologists stay current with international developments and offer evidence-based treatments. Treatment selection depends on individual factors, and your urologist can discuss suitable options during consultation.

Conclusion

Urinary problems, while common, should not be dismissed. From medications to minimally invasive procedures, modern urology offers treatment options for a range of urinary conditions. The approach involves accurate diagnosis and personalised treatment planning based on individual symptoms, lifestyle, and medical history. Early consultation may support better management outcomes.

Urinary problems can affect sleep, work, relationships, and overall quality of life. Dr Azhari can provide comprehensive, confidential care in a professional environment. With appropriate treatment, patients may experience improvement in symptoms.

 

Take the First Step Towards Better Health

Living with urinary problems can be challenging. Dr Azhari can provide diagnosis and treatment for urinary conditions using evidence-based approaches.

Dr. Nor Azhari Bin Mohd Zam

Dr. Nor Azhari Bin Mohd Zam

MBBS (NUS)|MRCS (Edin.)|MMed Surgery (NUS)|FAMS (Urology)

Former Director of Endourology (Urinary stone service) Singapore General Hospital 2016 to 2023

With more than 20 years experience as a certified Urologist, Dr Nor Azhari specializes in treating a wide range of kidney, bladder and prostate conditions as well as disorders of the male reproductive organs. He offers minimally invasive treatment options and provides same-day appointments for convenience.

  • Skilled urologist and kidney stone surgeon
  • Recognized with the College of Surgeons Gold Medal and Singapore Urological Association Book prize
  • Minimally invasive treatment options available (non-invasive and endoscopic/key-hole techniques)

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