High red blood cells in routine urine tests usually suggest hematuria, which can be divided into hematuria and microscopic hematuria, and is one of the most common symptoms of urological diseases. It is one of the most common symptoms of urological diseases. We should continue to improve the relevant examinations to clarify the cause of hematuria and treat it. Hematuria is commonly seen in various urological diseases and is often accompanied by other symptoms, such as kidney or ureteral stones (hematuria with renal colic), prostatitis (hematuria with interruption of urinary flow), and prostate cancer (hematuria with fine urinary flow and difficulty in urination). In addition, cystitis and urethritis (hematuria with urinary frequency, urgency and pain), pyelonephritis (hematuria with high fever and chills), glomerulonephritis (hematuria with edema and high blood pressure), hydronephrosis (hematuria with lumps in the kidney area), renal cysts, etc., can cause hematuria. It is recommended that patients with abnormal urine erythrocytes should go to the hospital in a timely manner, under the guidance of the doctor to improve the relevant examinations to determine the cause of hematuria, once hematuria occurs, the cause of hematuria should be clarified as soon as possible, standardized treatment, so as not to delay the condition.