What are the causes of positive urine occult blood?

Positive urine occult blood indicates abnormal detection of red blood cells in the urine and may be caused by various factors: 1. **Urinary tract infection**: Conditions such as urethritis, cystitis, or pyelonephritis may cause inflammatory reactions leading to red blood cell leakage into the urine. 2. **Kidney disease**: Such as glomerulonephritis, where damage to the kidney's filtration membrane allows red blood cells to leak out; structural abnormalities like kidney stones or tumors can also result in positive urine occult blood. 3. **Bladder and urethral issues**: Tumors, polyps, tuberculosis, trauma, or post-surgical conditions may also cause hematuria. 4. **Blood disorders**: Hematologic diseases such as leukemia, anemia, or thrombocytopenic purpura may affect blood vessels throughout the body, including the urinary tract. 5. **Medications or stress responses**: Certain medications (e.g., nonsteroidal anti-inflammatory drugs), intense physical exercise, or severe stress may temporarily cause hematuria. 6. **Other systemic diseases**: Conditions such as systemic lupus erythematosus, diabetes, or hypertension may affect kidney function and lead to hematuria. **Recommendations for daily care:** 1. Drink adequate amounts of water to maintain clear urine, which helps flush bacteria from the urinary tract. 2. Maintain good personal hygiene, especially for women to prevent urinary tract infections. 3. If hematuria persists, seek timely medical evaluation to identify the underlying cause and follow medical advice for treatment. Any persistent abnormality in urine should be taken seriously—prompt medical attention is essential.