The common causes of hematuria in women are as follows: I. False hematuria caused by menstrual contamination. Second, hematuria caused by urinary tract infection and urinary stones, most of these diseases will have symptoms such as frequent urination, urgency and painful urination in addition to hematuria. Third, urinary tract tumors, mostly seen in middle-aged and old people, in addition to hematuria, there can be no symptoms. Fourth, all kinds of nephritis, especially IGA nephropathy, most of them have recurrent hematuria after infection. Fifth, certain systemic diseases, such as blood system coagulation disorders, thrombocytopenia or excessive application of certain anticoagulant drugs, such as aspirin, warfarin, etc.. Certain physiological conditions are also prone to hematuria. For example, strenuous exercise, colds, fever. Identify the source of hematuria need to go to the hospital to check the urine routine, urinary ultrasound, coagulation image, if necessary, to do urinary CT, cystoscopy and other tests, women need to avoid the menstrual period.