High urine routine microscopy red blood cells indicate the presence of microscopic hematuria, which is caused by an increased number of red blood cells in the urine. There are many causes of high routine microscopic red blood cells in urine. They are commonly seen in diseases of the urinary system, such as inflammation of the urinary tract, which causes inflammatory oozing of blood from the mucosa of the urinary tract due to the presence of inflammation in the urinary tract, resulting in microscopic hematuria. In addition, it can also be seen in urinary stones, which cause damage to the mucosa of the urinary tract, resulting in an increase in microscopic red blood cells after bleeding. Neoplastic diseases of the urinary system, such as bladder tumors and kidney tumors, can also cause an abnormal increase in red blood cells in the urine. Other diseases that commonly cause positive urinalysis are urological tuberculosis and trauma.