Microscopic examination of red blood cells 0-1, which means that 0-1 red blood cells are observed under the microscope. The specific need to discuss by situation, mainly seen in the urine routine and stool routine test results. 1, urine routine: that is, microscopic examination of urine routine, urine routine in the normal value of red blood cells in each high magnification field of view range in 0-3, that is, in the routine laboratory urine, if the test result of 0-1 belongs to the normal range, no need to worry. 2, stool routine: normal stool without red blood cells, usually can indicate intestinal Lower segment inflammation or bleeding, if at this time accompanied by abdominal pain, diarrhea, vomiting, stool irregularities and other abnormalities, you need to further improve the relevant pathogenic examination, colonoscopy, etc., for differential diagnosis. If the patient has blood in the intestine or perianal area, further observation of stool properties as well as bleeding is recommended. If it is dry stool with blood dripping after stool, it is mostly considered as hemorrhoid or anal fissure, and finger examination can be performed to clarify the diagnosis. If blood is found in the stool, it may be ulcerative colitis, inflammation of the rectum or colon cancer, and colonoscopy is recommended for a clear diagnosis. It can also be common in dysentery, acute schistosomiasis, etc.