What is Hematuria| Causes, symtoms, and treatment

Hematuria is when you find blood in your urine. It may develop due to several conditions, including infections, kidney stones, or, in some cases, more serious underlying issues, making proper medical assessment essential.

What is Hematuria?

Hematuria means the presence of blood in your urine. It can occur due to various reasons, including infections, kidney stones, injuries, or other medical conditions affecting the urinary tract. In some cases, the exact cause may not be immediately identified.

Sometimes hematuria is temporary and may resolve on its own, especially in young individuals under 35 years of age. However, in people older than 35, the presence of blood in the urine can sometimes be associated with more serious conditions such as tumors or cancers of the urinary tract. Because of this, proper medical evaluation, testing, and follow-up are important to determine the underlying cause.

Blood in the urine can originate from different parts of the urinary system, including:

• Kidneys – Organs that clear waste from the bloodstream and create urine 
• Ureters –The tubes that transport urine from the kidneys to the bladder.
• Bladder – The organ that holds urine until it is expelled from the body. 
• Urethra – It carries urine from the bladder out of the body. 

Identifying the source of bleeding helps doctors determine the cause and the most appropriate treatment.

What are the symptoms of hematuria?

The symptoms of hematuria can vary depending on the underlying cause. In some cases, blood in the urine may be the only noticeable sign, while in others it may be accompanied by additional urinary or systemic symptoms.

Common symptoms include:

• Pink, red, or cola-colored urine due to visible blood
• Urine that appears normal but contains blood, detected only through laboratory testing
• Pain or burning sensation during urination
• Frequent urge to urinate
• Pain in the lower abdomen, back, or sides (flank pain)
• Difficulty or discomfort while passing urine
• Passing small blood clots in the urine in some cases

The presence and severity of symptoms often depend on the underlying condition, such as infection, kidney stones, or other urinary tract problems. In some individuals, especially with microscopic hematuria, there may be no noticeable symptoms, and it may only be discovered during routine urine tests.

What are the types of hematuria?

Hematuria is categorized into two types depending on whether the blood in the urine is visible or detected only through testing.

1. Visible (Gross) Hematuria
In gross hematuria, the blood in the urine can be seen with the naked eye. The urine may appear in multiple colours such as dark brown, pink, or red. Sometimes blood clots may also be present. Even a small amount of blood can change the color of urine, and noticeable bleeding should be evaluated by a healthcare professional.

2. Microscopic Hematuria
Microscopic hematuria occurs when blood is present in the urine but cannot be seen visually. The urine looks normal, and the blood cells are detected only during a laboratory urine test under a microscope. In some people, this may occur temporarily and resolve on its own, but medical assessment may still be needed to determine the cause.

What are the causes of hematuria?

Hematuria can occur due to a variety of conditions affecting the urinary system or other parts of the body. Certain causes may be minor and short-term, while others could need medical evaluation and treatment. 

Common causes include:

• Urinary tract infections (UTIs)
• Inflammation of the urinary tract
• A stone in the kidney, bladder, or ureters

In adults over 35 years old, hematuria may also be associated with:

• Kidney cancer
• Bladder cancer
• Prostate cancer
• Benign Prostatic Hyperplasia (BPH), condition that causes the prostate gland to enlarge. It is non-cancerous 

Other possible factors that can lead to hematuria include:

• Strenuous physical activity or heavy exercise
• Injuries to the urinary tract or surrounding muscles
• Recent medical procedures involving the urinary or reproductive tract, such as cystoscopy or pelvic examinations
• Menstrual bleeding
• Endometriosis
• Genetic conditions like sickle cell anemia
• Polycystic kidney disease (PKD) is a hereditary condition that causes fluid-filled cysts to develop in the kidneys
• Glomerular diseases, which damage the tiny filtering structures in the kidneys

Since hematuria can result from many different conditions, medical evaluation is important to determine the exact cause and guide appropriate treatment.

Also read about Lump in testicle

What are the complications of hematuria?

In some cases, hematuria can lead to complications, especially when there is significant bleeding or an untreated underlying condition.

Possible complications include:

• Blood clots in the urine, which can block the normal flow of urine from the bladder
• Heavy bleeding, which in severe cases may lead to low blood pressure or shock and requires immediate medical attention
• Urinary obstruction, caused by large clots that prevent urine from passing normally

Additionally, if hematuria is caused by an underlying medical condition such as infection, kidney stones, or a tumor, complications may develop if the underlying problem is not properly diagnosed and treated. Early medical evaluation helps prevent these potential risks.

What are the diagnosis methods?

To diagnose hematuria and identify its underlying cause, doctors may recommend several tests. The choice of tests depends on a person’s symptoms, medical history, and the suspected condition.

1. Urine Tests

Urine tests are often the first step in evaluating hematuria.

• Urinalysis: A basic urine test that uses a test strip to detect blood in the urine. If blood is detected, the sample is examined under a microscope to confirm it.
• Urine Culture: Helps identify urinary tract infections by detecting bacteria in the urine.
• Urine Calcium Test: Measures calcium levels in the urine. High levels may indicate kidney stones or other conditions that cause blood in the urine.
• Urine Protein Test: Checks for protein in the urine. The presence of both protein and blood may suggest a kidney-related problem.
• Urine Cytology: Examines urine under a microscope to look for abnormal or cancerous cells.

2. Blood Tests

Blood tests help evaluate kidney function and detect signs of infection or other disorders.

• Serum Creatinine: A blood test used to assess how effectively the kidneys remove waste products from the body. 
• Complete Blood Count (CBC): Checks for anemia and signs of infection by measuring red and white blood cells.
• Complement Protein Test: Helps detect certain kidney diseases, such as glomerulonephritis.

3. Imaging Tests

Imaging studies allow doctors to view the urinary tract and identify structural problems.

• Kidney and Bladder Ultrasound: Uses sound waves to detect kidney stones, cysts, tumors, or other abnormalities.
• CT Scan or MRI: Provides detailed images of the abdomen and pelvis to identify tumors, stones, or other causes of bleeding.

4. Specialized Diagnostic Procedures

• Cystoscopy: A thin tube with a small camera is inserted through the urethra to examine the bladder and urethra for the source of bleeding.
• Kidney Biopsy: A small sample of kidney tissue is taken with a needle and examined under a microscope if kidney disease is suspected.

5. Tests for Specific Conditions

• Prostate-Specific Antigen (PSA) Test: A blood test used to help detect prostate cancer.
• Prostate Biopsy: A small sample of prostate tissue is examined under a microscope to check for cancer cells.

Through these tests, healthcare providers can determine the cause of hematuria and recommend the most appropriate treatment.

What are the treatments for Hematuria?

The treatment for hematuria depends on the underlying cause. In some cases, no specific treatment is needed, especially if the bleeding is temporary and resolves on its own. However, when hematuria is linked to an underlying condition, treatment focuses on addressing that cause.

Common treatment approaches include:

• Antibiotics: If hematuria is caused by a urinary tract infection, antibiotics are usually prescribed to clear the infection.
• Lifestyle changes: When high calcium levels in the urine are present, doctors may recommend reducing salt intake and drinking more water. In some cases, medications may also be used to lower calcium levels.
• Medications for kidney disease: If hematuria is related to glomerular disease, treatment may include steroids or other medications that reduce inflammation in the kidneys. Doctors may also prescribe medications such as ACE inhibitors or ARBs to control blood pressure and protect kidney function.
• Treatment for kidney stones: Small kidney stones may pass on their own without treatment. However, if stones cause pain, infection, or blockage, medical procedures may be required to remove them. Additional tests may also be done to help prevent future stones.
• Cancer treatment: If blood in urine is caused by cancers of the kidney, bladder, or other parts of the urinary tract, treatment depends on the type, size, location, and stage of the tumor. This may include surgery, medication, or other cancer treatments.

In cases where all test results are normal but hematuria continues, doctors may recommend regular follow-up and yearly check-ups to monitor kidney health and detect any possible conditions early.

Conclusion

Hematuria is the presence of blood in the urine and can be caused by various conditions, ranging from infections and kidney stones to more serious diseases. Proper diagnosis and timely medical evaluation are important to identify the cause and ensure appropriate treatment. Early detection and regular follow-up help prevent potential complications and maintain urinary health.

FAQs