What are the causes of a 41-year-old woman with positive urine occult blood?

Patient's question:

No

Doctor's answer:

Urine occult blood refers to the presence of increased red blood cells in a routine urine test. In a minority of cases, it can be referred to as occult blood in the urine. In a routine urine test report, the urine red blood cell count is indicated with a " " or "-" symbol. Under normal red blood cell levels, the urine red blood cell column shows a negative result, marked with a "-" sign. When there is an increase in red blood cells, indicating the presence of occult blood in the urine, it is considered a positive result for occult blood.