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Glossary: Anemia

Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. Possible causes of anemia include:

  • Long-term (chronic) diseases such as chronic kidney disease, cancer, ulcerative colitis, or rheumatoid arthritis
  • Destruction of red blood cells earlier than normal (which may be caused by immune system problems)
  • Certain medications
  • Some forms of anemia, such as thalassemia or sickle cell anemia, which can be inherited
  • Pregnancy
  • Problems with bone marrow such as lymphoma, leukemia, myelodysplasia, multiple myeloma, or aplastic anemia.

Source: NIH.gov

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