Causes of urine occult blood positive

1, vigorous exercise

If the patient has strenuous exercise, it is easy to cause damage to the blood vessel wall, so that red blood cells into the urine, causing urine occult blood positive.

2, urethral stones

If the urethral stones are large, it may scratch the urethral mucosa, causing blood to flow into the urine, resulting in positive urine occult blood test results.

3, glomerulonephritis

Glomerulonephritis will destroy glomerular filtration function, causing red blood cells to leak into the urine, so urine occult blood results will be positive.