Urine routine leukocytes 2 plus, usually means that there may be a urinary tract infection. It is necessary to combine the patient’s clinical symptoms and urine culture results to make a comprehensive judgment. Urinary tract infections include acute and chronic cystitis and chronic pyelonephritis, etc., and in serious cases, urethral stenosis, perinephric abscess and other complications will occur. 1. Chronic cystitis: In addition to the typical signs of bladder irritation (urinary frequency, urgency, painful urination), there will be burning sensation in the urethra, hematuria, pyuria and other symptoms, if left untreated, with the development of the disease, there may be thickening of the bladder wall, overactive bladder signs and so on. 2. Chronic urethritis: manifested as urethral stinging, itching, abnormal secretions and other symptoms, with the development of the disease, the urethra is repeatedly stimulated, it will gradually develop into urethral stenosis, urinary difficulties. 3. Chronic pyelonephritis: in addition to bladder irritation, the main manifestations are dull pain in the renal region, hematuria, etc. Some patients also have fever, chills and other systemic symptoms, and in severe cases, it will develop into perinephric abscess and renal papillary necrosis. If the urine routine found 2 plus white blood cells, it is recommended to timely to the hospital, follow the doctor’s instructions for treatment, so as not to delay the condition.