2020年11月5日星期四

what does a hemorrhoids look like,Stool microscopic examination

    [Item name] Stool microscopic examination [Reference value] Normal stool microscopic examination generally has no red blood cells or white blood cells, or occasionally 1-2 white blood cells (written as 0--1/HPF or 0-2/HPF) under high magnification. No parasite eggs and protozoa.

    [Clinical significance] Stool microscopic examination may suggest some problems if the following contents are found.

    1. Increase of white blood cells: The number of white blood cells is generally less than 15/HPF in enteritis, the number of white blood cells is significantly increased in bacillary dysentery or amoebic dysentery, the number of white blood cells will also increase in allergic enteritis, intestinal parasitic diseases, and can be found More eosinophils.

    2. Increased red blood cells: common in lower gastrointestinal bleeding, intestinal inflammation, ulcerative colitis, colon cancer, rectal cancer, rectal polyps, hemorrhoid bleeding, bacillary dysentery and amoebic dysentery. In amebic dysentery, the number of red blood cells in the stool is significantly more than that in white blood cells, and the number of red blood cells in bacillary dysentery is often less than that in white blood cells.

    3. Parasite eggs, parasites, or protozoan found in the feces can confirm the corresponding parasite or protozoan infection. This is the most positive evidence of parasite infection.

    4. Other findings: When there are more starch granules or fat droplets in the stool, it may be related to diarrhea, enteritis or chronic pancreatitis; if Charcoal-Leyden's crystals appear, it may be suspected of amoebic dysentery or hook Insect diseases; if a large number of epithelial cells appear, it indicates that there is inflammation in the intestinal wall, such as necrotizing enteritis, ulcerative bowel cancer, etc.; a large number of phagocytes can be found in ulcerative colitis or bacillary dysentery. In addition, tumor cells and fat droplets can be found in stool examination.

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