Urine that is the color of prune water and turns red should be suspected of hematuria. Any degree of hematuria should not be spared and should be carefully examined and the cause found. Common causes of hematuria are urologic diseases such as acute and chronic nephritis, nephrotic syndrome, IgA nephropathy, urinary tract infections, urinary tract stones or tumors. Systemic diseases such as leukemia, sepsis, systemic lupus erythematosus. In addition, diseases of the neighboring organs of the urinary tract and certain chemicals can also cause hematuria. Hematuria is one of the most important symptoms of urologic diseases and is often a danger sign of the disease. It should be noted that the degree of hematuria has no significant correlation with the severity of the disease. Therefore, once hematuria occurs, especially in adults, you should go to the hospital to check the cause of hematuria, especially to exclude the possibility of malignant tumors.