Two plus signs of urinary occult blood, need to clarify whether it is hematuria, if determined to be hematuria to clarify what exactly is the cause of the cause. The common causes: 1. If it is caused by specimen contamination, it may be due to women’s menstruation mixed into the urine, causing urinary occult blood two plus, which does not cause harm. 2. caused by urinary tract infection, as long as active anti-infection treatment, urinary occult blood will also automatically disappear. 3. urinary routine occult blood two plus, often seen in the urinary tract stones or urinary tumors. If a urinary stone is not treated, it may cause renal colic or combined urinary tract infection over time. Urological tumors will progress without timely detection, and malignant tumor metastasis endangers human health.4. Due to glomerulonephritis or nephropathy, it is necessary to assess kidney function and treat accordingly according to different pathological findings. Chronic nephritis or nephrotic syndrome, which may develop into chronic renal failure, requires attention.