Urine routine examination of urinary occult blood 3 +, the rest of the indicators are normal, generally can indicate the emergence of hematuria, may be strenuous exercise, female menstruation and other physiological reasons, but also may be due to renal or blood diseases and other pathological reasons. 1. Physiological reasons: such as strenuous exercise, after overwork, or some women in the urine test, may be in the menstrual period, the collection of urine, mixed with menstrual blood, these reasons can lead to positive urinary occult blood, generally no special treatment, it is recommended to take a rest or after menstruation and then re-examination can be. 2. Pathological reasons: blood diseases, including coagulation disorders, poor coagulation function can not stop bleeding, can be manifested as urinary occult blood 3 +, the rest of the indicators are normal. All kinds of acute and chronic glomerulonephritis, can also be manifested as abnormal urinary occult blood, at this time need to be combined with other tests for comprehensive judgment. In addition to the above, urine occult blood 3 +, the rest of the indicators are normal, can also be seen in other reasons. It is recommended that the patient should consult a doctor in time, follow the doctor’s instructions for further examination, clarify the cause under the doctor’s guidance, and actively cooperate with the doctor to deal with or treat the disease.