Urine routine occult blood 1 plus sign means what

A plus sign in urine routine indicates that urine contains red blood cells under microscope, i.e. microscopic hematuria.

Normal urine does not contain red blood cells. If red blood cells are found in urine under microscope, microscopic hematuria belongs to microscopic hematuria. According to the number of red blood cells, the more plus signs, the more red blood cells, the more serious hematuria. Microscopic hematuria is generally related to urinary stones, urinary system infections and other factors, such as urethritis, nephritis, kidney stones, ureteral stones and other diseases

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