A high red blood cell count, or polycythemia, may lead to easy bruising or bleeding, the formation of blood clots, pain in joints or bones, dizziness, fatigue and abdominal pain, states eMedicineHealth. In cases where an... More »

Anabolic steroids and erythropoietin cause high red blood cell counts, according to Mayo Clinic. Erythropoietin, or EPO, injections are given to athletes to increase performance. EPO causes the kidneys to release too muc... More »

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A high red cell distribution width has been associated with serious complications after congenital heart surgery for children, according to the National Institutes of Health. RDW is a parameter that measures variation in... More »

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The primary symptoms of leukemia include frequent infections, anomalous bruising, pain in the bones and joints, abdominal pain, excessive bleeding, and a general sense of fatigue. Because so many other conditions share t... More »

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Individuals suffering from polycythemia can exhibit general symptoms, such as headache, weakness, fatigue, joint pain, bruising, itching and abdominal pain, according to MedicineNet. Symptoms can be minimal to non-existe... More »

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A low red blood cell count, most often referred to as anemia, can cause weakness, fatigue, dizziness, fainting, lack of energy, pale skin, rapid heart rate or palpitations and shortness of breath. Chronic anemia in child... More »

Typical symptoms of a high red blood cell count include fatigue and weakness, joint pain, itching and headaches, according to MedicineNet. In cases where this condition is accompanied by risk factors such as cancer of th... More »