Is the presence of 8 red blood cells per high-power field in urine serious?
Apr 28, 2022
Source: Cainiu Health
Dr. Zhao Xinju
Introduction
Having 8 red blood cells per high-power field (HPF) in the urine is generally considered significant. A count of 8 red blood cells in the urine may indicate kidney injury, urinary tract disorders, or certain gynecological conditions. Kidney injury may result from diseases such as renal tuberculosis or renal tumors. Urinary tract disorders—such as cystitis, acute nephritis, or chronic nephritis—can cause urinary tract infections leading to hematuria. Hematuria may also be caused by gynecological conditions.
The presence of 8 red blood cells per high-power field (RBC/HPF) in urine is generally considered clinically significant. This finding may indicate kidney injury, urinary tract disorders, or certain gynecological conditions. Specific causes include the following:
1. Kidney Injury
Renal tuberculosis, renal tumors, and other kidney diseases can cause structural damage and impair renal function, potentially resulting in hematuria—manifested as 8 RBCs/HPF in the urine.
2. Urinary Tract Disorders
Under normal circumstances, urine contains no red blood cells. The detection of 8 RBCs/HPF suggests microscopic or gross hematuria. Conditions such as cystitis, acute or chronic glomerulonephritis, and other urinary tract infections may lead to hematuria. Additionally, urinary tract calculi—including ureteral and renal stones—are common causes of hematuria.
3. Gynecological Conditions
Hematuria may also stem from certain gynecological disorders, which are relatively common among women. If hematuria is observed in daily life, prompt medical evaluation is essential to identify the underlying cause and prevent disease progression.
