High bacteria in urine test is considered to be bacteriuria, normally urine is sterile, if the bacteria in urine is high then it means that there is a urinary tract infection. If the urine test is not done properly, it can also be other causes of bacteria interfering with the urine test. 1, bacteriuria definition: uninfected urine more than 1,000 bacteria per milliliter of urine, infected urine more than 100,000 bacteria considered to be bacteriuria, and the need to repeat positive culture results, indicating a situation of infection. 2, urinary tract infections, such as urethritis, pyelonephritis, prostatitis can cause elevated bacteria in the urine, this time urine routine can indicate elevated white blood cells. In the case of inflammation of the female reproductive system, there will also be bacterial urine when vaginal secretions are mixed into the urine. 3, when collecting urine, if the perineum and urethral opening are not cleaned, bacteria from the epidermis will be collected, resulting in inaccurate results of the urine test. Therefore, it is important to keep the penis and vulva clean when taking urine. Repeat culture is needed to get the final result. In fact, under normal circumstances in the urethral orifice can exist Staphylococcus epidermidis, just the number will not be particularly large, for asymptomatic bacterial urine can also be temporarily observed, without oral medication, if there is a clear elevation of white blood cells, indicating an inflammatory response, to actively use antibacterial drug treatment.