Inside your bones, red marrow helps make red blood cells, platelets, and white blood cells, including plasma cells. There are about 5.7 pounds of it inside the bones of an average adult. Yellow ...

Blood can sometimes look orange or yellow in people with high levels of bilirubin, a yellowish substance produced when red blood cells break down. This might indicate liver problems or certain ...

Several red blood cell disorders can decrease the effectiveness of a person’s red blood cells. These include anemia, polycythemia, sickle cell disease, thalassemia, and malaria.

They may look simple, but our red blood cells are the sophisticated result of evolution. So to create new ways to study our bodies and perhaps even disperse drugs to different organs and body parts, ...

A red blood cell count test gives the correct number of red blood cells in your body. Learn about how the test is done, why it is done, risks, and more.

A high red blood cell count can occur for many reasons, including excessive production of cells, ... Doctors instead look at a person’s overall health, risk factors, and symptoms.

Leukemia can have vague symptoms, or none at all, so it’s often detected through routine blood work. Learn how blood cell counts help detect leukemia and guide treatment.

Normal blood test ranges Depending on the lab that analyzed your sample, the results from your blood test may be broken down into individual tests or collections of related tests called panels .