Negative Effects
The simple act of increasing the number of red blood cells in blood raises its viscosity, which can cause it to clot or coagulate more readily. This increases the chances of heart attack, stroke, and pulmonary embolism, which has been seen in cases where there is too much blood reintroduced into the blood stream. Because blood doping increases the volume of red blood cells, it effectively introduces a condition called polycythemia, a blood disorder that has known adverse outcomes.
Blood contamination during preparation or storage is another issue. Contamination was seen in 1 in every 500,000 transfusions of red blood cells in 2002. Blood contamination can lead to sepsis or an infection that affects the whole body.
Certain medications used to increase red blood cells can reduce liver function and lead to liver failure, pituitary problems, and increases in cholesterol levels.
Read more about this topic: Blood Doping
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