Urine test leukocytes 3 +, how long will it take to cure is mainly related to the causes of increased urinary leukocytes. Common causes include pathological factors such as urethritis, cystitis, pyelonephritis, interstitial nephritis, etc.; physiological factors such as strenuous exercise, low water intake, specimen contamination and so on. There are individual differences in healing time, and no generalization can be made. If the urinary tract infection such as urethritis, cystitis causes a large number of white blood cells in the urine, it may take about 7 to 10 days to cure. If pyelonephritis or interstitial nephritis causes a large number of white blood cells in the urine, the condition is serious and may take about 10 to 14 days to cure. If it is caused by physiological reasons, it can be checked after proper rest, ensuring water intake, keeping the vulva clean, and avoiding physiological period for women, and it will usually return to normal. It is recommended that patients with abnormal urinary leukocytes go to the hospital in time for consultation and active treatment under the guidance of the doctor. Usually pay attention to personal cleanliness, do a good job of local hygiene, so as to avoid triggering urinary tract infections.