Why does urine routine have occult blood

1.

Excessive strenuous exercise may lead to accelerated blood flow in blood vessels and abnormal results of examination.

2. Chronic cystitis

When chronic cystitis occurs, inflammatory factors stimulate urethral mucosa, which will cause blood to enter urine and occult blood to appear.

3. Kidney stones and

kidney stones may damage kidney tissue. At the same time, they may also affect urination function, causing urinary pain and blood.