Urine bacterial overload is the presence of a large number of bacteria in the urine as detected by a routine urine test. Excessive urine bacteria may be caused by urinary tract infection or improper urine retention. Patients need to pay attention to the presence of urinary frequency, urgency, urinary pain and other clinical symptoms, and it is recommended to review the urine routine again. Excessive urine bacteria means that the bacterial value is found to exceed the normal value during the routine urine examination, indicating the presence of bacterial reproduction in the urine. Excessive urine bacteria may be caused by diseases with bacteria such as urethritis, cystitis, pyelonephritis, prostatitis and so on. It is also possible that the urine is contaminated due to improper handling by the patient when the urine specimen is retained. If the urine bacteria exceeds the standard for the urinary system diseases, usually accompanied by frequent urination, urinary urgency, urinary pain and other clinical symptoms, it is recommended to improve the relevant examination to clarify the cause of the disease, and to give appropriate treatment.