What is the cause of urine routine occult blood 1+?

1.

After urethritis, urethral mucosa appears congestion, edema, erosion, etc., resulting in blood exudation, mixed with urine, discharged from the body, at this time there will be physical examination urine routine occult blood 1+.

2. Cystitis

cystitis will lead to bladder barrier damage, so that local breeding more bacteria, stimulate bladder wall mucosa, leading to local capillary rupture, blood infiltration into urine, leading to physical examination urine routine occult blood 1+.

3. Glomerulonephritis

glomerulonephritis will lead to renal function decline, so that glomerular filtration function is reduced, leading to hemoglobin flow into urine, there will be physical examination urine routine occult blood 1+ phenomenon.