Urine leukocytes 2 + and accompanied by lumbar discomfort, may be caused by urinary tract infection, urinary stones and other reasons, need to choose the appropriate treatment for the cause. 1. Urinary tract infection: when there is pyelonephritis, cystitis, urethritis and other diseases, there will be abnormal white blood cells, but also can be manifested as frequent urination, urinary urgency, urinary pain, lumbar pain, back pain and other discomforts, you can follow the doctor’s instructions to take medication, such as amoxicillin, levofloxacin and so on. 2. Urinary stones: when there are kidney stones, ureteral stones, bladder stones and other diseases, will cause abnormal urine routine, can be accompanied by hematuria, nausea, vomiting, lumbago and other discomforts, smaller stones can take stone particles, renal lithotripsy granules, and other medications, or to take the extracorporeal lithotripsy, surgical treatment. It is recommended to further improve the examination, according to the urine culture and drug sensitivity test to choose the appropriate drug treatment, if necessary, surgical treatment.