1. the body, there are fewer red blood cells can cause anemia.2. disease that causes swelling, such as liver cirrhosis (cirrhosis) disease, Nephrotic syndrome occurred to dilute the red blood cells, thus lower values for Hct.3. born to lose quite a lot from the blood somehow, such as haemorrhoids are intestinal hookworms gastrointestinal bleeding, or bleeding.4. due to the lack of vitamins, such as vitamin B12 or iron foli acid which is associated with the creation of red blood cells. Causes the bone marrow to produce red blood cells in a smaller size, or have fewer, which inevitably has a direct result makes up for lower-than-normal Hct.5. disease, bone marrow disorders (bone marrow failure), such as an infection or a tumor causes the red blood cells of other types decreased.6. disease, chronic renal failure Make the kidneys produce hormones (erythropoietin) produces red blood cells decreases, which causes the bone marrow to stimulate received reduced so blood concentrations decrease.
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