What does mid (++++) in urine routine mean? First of all, it depends on which item appears in (++++), if it is in white blood cells (++++), it proves that it is a more serious urinary tract infection, generally speaking, it needs regular anti-infection treatment to get better. Next is red blood cell (++++), red blood cell (++++) refers to microscopic hematuria, there are individual patients who will have carnal hematuria, hematuria can be caused by a variety of diseases, the most common are urinary tract infections, urinary stones or urinary tract tumors, all can cause hematuria. The key is that if the hematuria is caused by a urological tumor, it needs to be given full attention, and the diagnosis can be clarified by further examination of urological ultrasound or urological CT, etc.