Anemia is a condition characterized by abnormally low levels of red blood cells. Cells require a constant supply of oxygen in order to stay healthy. Oxygen is delivered to cells by red blood cells, which pick up oxygen in the lungs. They carry the...

Anemia Deficiency of red cells, or hemoglobin, in the blood. Anemia is a medical condition in which the quantity of red blood cells falls below an acceptable level. Red blood cells, produced in the bone marrow, contain hemoglobin, the component of...

Anemia is a disorder in which the blood has less hemoglobin or fewer red cells than normal. With less hemoglobin, the blood carries less oxygen to the body's cells, which causes weakness, fatigue, and paleness in the anemic person. If hemoglobin levels...

Oxygen is distributed throughout the body by red blood cells, which contain an oxygen-carrying molecule called hemoglobin. Hemoglobin's ability to carry oxygen depends on iron. Red blood cells live for about 120 days. When they die, their iron is...

Anemia is a medical condition in which the red cells of the blood are reduced in number or volume or are deficient in hemoglobin, their oxygen-carrying pigment. Almost 100 different varieties of anemia are known. Iron deficiency is the most common...

Any condition in which the number of red blood cells, the amount of hemoglobin, and the volume of packed red blood cells per 100 mL of blood are less than normal. It may result from increased destruction of red cells, excessive blood loss, or decreased...

Condition in which erythrocytes are reduced in number or volume or are deficient in hemoglobin. The patient is usually noticeably pale. Close to 100 varieties exist (including aplastic anemia, pernicious anemia, and sickle-cell anemia), distinguished...

A decrease in the number of red blood cells (erythrocytes) or the concentration of HAEMOGLOBIN in the blood, both of which reduce the oxygen-carrying capacity causing tiredness, lack of energy and pallor. See also: APLASTIC ANAEMIA; PERNICIOUS...

Anemia (AmE) or anæmia/anaemia (BrE), from the Greek (á¼ναιμία) (an-haîma) meaning "without blood", is a deficiency of red blood cells (RBCs) and/or hemoglobin. This results in a reduced ability of blood to transfer oxygen to the tissues,...