What Is Occult Blood in Urine and How Is It Treated?

Occult blood in urine refers to the presence of blood in the urine that is not visible to the naked eye. It can be an alarming sign as it may indicate an underlying medical condition.

In this article, we will explore what occult blood in urine is, its causes, symptoms, diagnostic tests, treatment options, prevention, and when to seek medical attention.

Occult Blood in Urine

Causes of Occult Blood in Urine

Occult blood in urine can stem from various underlying causes, including urinary tract infections (UTIs), kidney stones, bladder or kidney infections, kidney disease, and inflammatory bowel disease.

UTIs are one of the most common culprits, particularly in women. Kidney stones, on the other hand, can cause microscopic bleeding when they pass through the urinary tract. Infections in the bladder or kidneys can also lead to blood in the urine.

Additionally, kidney diseases, such as glomerulonephritis or polycystic kidney disease, and inflammatory bowel disease, like Crohn’s disease or ulcerative colitis, can contribute to the presence of occult blood in urine.

Read: What Causes Dark Brown Urine

Symptoms of Occult Blood in Urine

While occult blood in urine is not visible to the naked eye, there are certain symptoms that may accompany its presence.

  • Hematuria: Occult blood in urine can cause microscopic or trace amounts of blood, leading to a condition known as hematuria. Although the blood may not be visible, it can be detected through laboratory tests.
  • Urinary abnormalities: In some cases, the presence of occult blood in urine can be accompanied by changes in urinary habits or characteristics. This may include increased frequency of urination, urgency, or pain during urination.
  • Lower abdominal or back pain: Some individuals with occult blood in urine may experience pain or discomfort in the lower abdominal area or back. The intensity and location of the pain can vary.
  • Urinary tract infection (UTI) symptoms: UTIs can sometimes be associated with occult blood in urine. Symptoms may include a strong and persistent urge to urinate, a burning sensation during urination, cloudy or foul-smelling urine, and pelvic pain.
  • Other underlying conditions: Occult blood in urine can be a sign of an underlying condition, such as kidney stones, bladder or kidney infections, bladder or kidney tumors, or other kidney diseases. Depending on the specific condition, additional symptoms may be present, such as fever, weight loss, or swelling.

Diagnostic Tests for Occult Blood in Urine

To diagnose occult blood in urine, various tests are employed. A urinalysis is typically the initial step, where a sample of urine is analyzed for the presence of red blood cells.

If the results indicate the presence of blood, additional tests may be recommended. These can include a urine test specifically looking for hemoglobin or myoglobin, which can confirm the presence of blood components.

In some cases, a cystoscopy may be performed to visually examine the bladder and urethra. Imaging tests, such as a CT scan, MRI, or ultrasound, may also be ordered to assess the urinary tract for any abnormalities.

Treatment Options

Treatment for occult blood in urine depends on the underlying cause. If a urinary tract infection is identified, antibiotics are typically prescribed to clear the infection.

Kidney stones may require medications to facilitate their passage or surgical intervention in certain cases. Addressing kidney disease may involve medication, dietary changes, and managing associated conditions such as high blood pressure.

In the case of cancer, treatment options can range from surgery to chemotherapy or radiation therapy.

Prevention and Management

Maintaining good urinary tract health is crucial in preventing occult blood in urine. Drinking plenty of water helps flush out bacteria and toxins from the urinary system.

Avoiding smoking and excessive alcohol consumption can also contribute to overall urinary tract health. Regular exercise and a healthy diet help maintain optimal kidney function.

If there is a history of kidney or urinary tract issues, it is essential to follow the prescribed management plan and attend regular check-ups.


What is the main cause of occult blood in urine?

The main causes of occult blood in urine can include urinary tract infections, kidney stones, bladder or kidney infections, kidney disease, and inflammatory bowel disease.

can occult blood in urine be from period?

Yes, occult blood in urine can sometimes be from the menstrual period. During menstruation, small amounts of blood can enter the urinary tract, leading to the presence of occult blood in urine.

Is occult blood in urine always a sign of a serious condition?

Occult blood in urine is not always a sign of a serious condition, but it should never be ignored. It is important to consult a doctor for proper evaluation and diagnosis.

Can urinary tract infections cause occult blood in urine?

Yes, urinary tract infections are one of the common causes of occult blood in urine, especially in women.


Occult blood in urine, although not visible to the naked eye, can be indicative of underlying medical conditions. Early detection and appropriate treatment are vital in addressing the root cause and preventing potential complications.

Routine check-ups, prompt medical attention, and adopting healthy lifestyle habits can help maintain optimal urinary tract health.