What causes occult urine positive?

Urine occult blood positive may be caused by urinary system infection, stones, nephrotic syndrome and other reasons.

1, urinary system infection

if the patient has cystitis, urethritis or pyelonephritis and other diseases, due to inflammatory factors stimulate mucosal tissue, so that its congestion edema, in the urine washed when the mucosal rupture, so that red blood cells into the urine.

2, stones

urinary tract stones or kidney stones in patients with urination may scratch the urethral wall or other tissues, prone to obvious pain, urine with blood.

3, nephrotic syndrome

patients with glomerulonephritis and lupus nephritis, glomerular filtration rate decreased, plasma components into the urine, may lead to red blood cells in the urine.