After the discovery of urine occult blood, further examination is needed to clarify the cause and actively treat the primary cause. Urine occult blood is the basic item of routine urine examination. Positive urine occult blood often indicates the occurrence of hematuria. Positive urine occult blood indicates the possibility of hematuria. A strong positive urine occult blood is often accompanied by a significant increase in red blood cells, both of which can reflect the presence of hematuria. Positive urine occult blood is often seen in the following conditions: urinary tract infections, urinary stones, tumors, kidney disease or nephritis. The result of urine occult blood sometimes appears as “+/-“, which indicates a suspicious positive result, but it is important not to be very nervous when seeing this result, but to further examine and screen for the cause. Many people are deeply troubled by urine occult blood after routine urine test results, in fact, strenuous exercise, drug use can also appear positive urine occult blood, to rationalize the test results, and timely further examination to exclude the possibility of serious diseases. In summary, urine occult blood is an indicator to determine whether there is blood in the urine, and positive urine occult blood is very common in clinical practice. Once a positive urine occult blood appears, it is recommended to promptly clarify the cause of the disease and provide timely symptomatic treatment according to the cause. There is no need to worry excessively.