Urine erythrocytes +, represents the appearance of hematuria, but no infection, consider the causes of hematuria, including physiological causes such as strenuous exercise; pathological causes such as urinary stones, urinary tumors, glomerulonephritis, coagulation dysfunction and other diseases; drug factors (such as warfarin) and so on. 1. Physiological reasons, such as after strenuous exercise, may appear urinary erythrocytes + performance, pay attention to regular review. 2. Pathological causes such as urinary stones, urinary tumors, glomerulonephritis, coagulation dysfunction diseases can lead to urinary erythrocytes +, at this time, we need to improve the renal ultrasound, renal CT, urinary protein quantitative, coagulation function and other tests, to clarify the specific causes of the disease, according to the different causes of the disease, targeted treatment. 3. In addition, drug side effects such as certain antibiotics (amoxicillin), anticoagulants (warfarin), mercury, cyclophosphamide and other drugs in the use of the process such as toxic side effects, can appear in varying degrees of hematuria. The discovery of positive red blood cells in the urine, it is recommended to consult a regular hospital, complete the relevant examinations, clear the cause of the disease and then actively treat, so as to avoid delaying the condition.