Occult blood refers to blood not visible to the naked eye but detectable by chemical or microscopic methods.

The test helps identify hematuria (blood in urine), which may be due to:

Urinary tract infections (UTIs)

Kidney disease or injury

Stones in the urinary tract

Tumors of the bladder or kidney

Trauma or bleeding disorders

Often performed as part of a routine urinalysis.

Clinical uses include:

Screening for urinary tract pathology.

Supporting diagnosis of renal and bladder conditions.

Monitoring patients with known kidney disease or hematuria.

Analyte: Presence of hemoglobin or intact red blood cells in urine.

Normal Result: Negative (no occult blood detected).

Abnormal Findings:

Positive occult blood: Indicates microscopic hematuria.

May be associated with infection, stones, trauma, tumors, or systemic disease.

Clinical Use:

Provides a screening tool for urinary tract bleeding.

Helps guide further diagnostic evaluation (imaging, culture, cytology).

Supports early detection of kidney and bladder disorders.