What is the reason for urine routine examination occult blood 3 plus

Urine routine examination occult blood 3+ is mainly related to physiological factors and pathological factors. Pathological factors mainly include cystitis, kidney stones, etc.

First, physiological factors

If female patients are in menstrual period, due to menstrual blood pollution urine, can lead to an increase in the number of red blood cells in urine, urine routine examination will find urine occult blood 3+, if re-measured in menstrual interval, it will return to normal.

Second, pathological factors

1, cystitis

Cystitis is mainly related to bacterial infection, drug factors, bladder foreign body and other reasons, due to inflammation continue to stimulate the urethra, can lead to urethral mucosa congestion, local blood vessel rupture bleeding, increased number of red blood cells in urine, leading to urine occult blood test 3+.

2, kidney stones are

mainly related to metabolic abnormalities, local factors, if the stone volume is small, in the urethra activity is relatively high, may damage urethral stones, leading to bleeding, urine mucosal occult blood test will be 3+.