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www.mayoclinic.org/symptoms/high-red-blood-cell-count/basics/definition/sym...

A high red blood cell count is an increase in oxygen-carrying cells in your bloodstream. Red blood cells transport oxygen from your lungs to tissues throughout your body. A high red blood cell count can result from a condition that limits your oxygen supply or a condition that directly increases red blood cell production.

my.clevelandclinic.org/health/symptoms/17810-high-red-blood-cell-count/...

What causes a high red blood cell count? A high red blood cell count may be a symptom of a disease or disorder, although it doesn’t always indicate a health problem. Health or lifestyle factors can cause a high red blood cell count. Medical conditions that can cause an increase in red blood cells include:

www.medicinenet.com/polycythemia_high_red_blood_cell_count/article.htm

Polycythemia (high red blood cell count) is a condition in which the body's red blood cells are elevated. Symptoms include fatigue, headache, itching, abdominal pain, joint pain. Learn about polycythemia causes, treatment, life expectancy, types and more.

www.reference.com/health/symptoms-high-red-blood-cell-count-16ef92fe1e539b2c

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 the kidney or liver, fullness and weight loss are common, says WebMD.

www.verywellhealth.com/red-blood-cell-rbc-count-1942659

The red blood cell (RBC) count is used to measure the number of oxygen-carrying blood cells in a volume of blood. It is one of the key measures we use to determine how much oxygen is being transported to cells of the body.

labtestsonline.org/tests/red-blood-cell-count-rbc

A red blood cell (RBC) count is typically ordered as part of a complete blood count (CBC) and may be used as part of a health checkup to screen for a variety of conditions. This test may also be used to help diagnose and/or monitor a number of diseases that affect the production or lifespan of red blood cells.

www.wisegeek.com/what-does-a-high-red-blood-cell-count-indicate.htm

A high red blood cell count may indicate a range of conditions. For example, it could mean there is a problem with a person’s heart, lung, or kidney function. Sometimes it occurs because the bone marrow is producing abnormally high amounts of red blood cells or because the red blood cells are aren’t carrying as much oxygen as they should ...

www.newhealthadvisor.com/High-Red-Blood-Cell-Count.html

The terms polycythaemia and erythrocytosis are used by doctors if you have a high red blood cell count. Polycythaemia is an abnormally high concentration of hemoglobin in the blood through an increase in red cell numbers, whereas erythrocytosis only refers to a documented increase of red cell mass.

www.healthline.com/health/blood-cell-disorders

A blood cell disorder is a condition in which there’s a problem with your red blood cells, white blood cells, or the smaller circulating cells called platelets, which are critical for clot ...

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