Urine test red and white blood cells as well as epithelial cells are high, most commonly seen in the urinary system bacterial infection, urinary system stones with bacterial infection, urinary system tumors with bacterial infection, etc., need to further improve the examination, in order to clarify the condition. 1. Bacterial infection of urinary system: for example, urethritis, cystitis, pyelonephritis caused by bacterial infection, patients’ urethral mucosa may show congestion, edema, exudation and so on, and the blood vessels of the mucosa are prone to rupture and bleed, so there will be red blood cells; bacterial infection may lead to the presence of leukocytes in the urine; the infection may lead to damage of the urinary mucosa, and then epithelial cells will appear. 2. Urological stone with bacterial infection: although stone patients will not have leukocytes, but it can lead to red blood cells and epithelial cells, and leukocytes can be seen when accompanied by bacterial infection, so patients with stone accompanied by bacterial infection can have high red and white blood cells and epithelial cells. 3. Urological tumor with bacterial infection: urological tumors, especially malignant tumors, can appear painless hematuria, urine test can appear red blood cells; tumors with bacterial infection can appear white blood cells; tumors and bacterial infection can lead to high epithelial cells. In summary, urine test red and white blood cells epithelial cells are high there are other reasons, please consult the hospital in a timely manner, further improve the examination, such as urological ultrasound, CT and other imaging tests, etc., to clarify the cause of the disease, and the professional physician to give the corresponding treatment.