Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues.
Hemoglobin is the oxygen-carrying protein inside red blood cells. It gives red blood cells their red color. People with anemia do not have enough hemoglobin.
Iron deficiency anemia (2 images)
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There are many types of anemia. Iron deficiency anemia is a decrease in the number of red cells in the blood caused by too little iron.Reviewer: Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 04/05/2009
Iron deficiency anemia - children (3 images)(Doctor-Reviewed information)
Iron deficiency anemia is a decrease in the number of red blood cells due to a lack of iron.This article focuses on iron deficiency anemia in children.Iron deficiency anemia is the most common form of anemia. Iron is an essential part of hemoglobi...Reviewer: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. Date: 12/09/2008
Folate-deficiency anemia (2 images)(Doctor-Reviewed information)
Folate-deficiency anemia is a decrease in red blood cells( anemia) due to a lack of folate.Folate, also called folic acid, is necessary for red blood cell formation and growth. You can get folate by eating green leafy vegetables and liver. Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/23/2008
Pernicious anemia (1 image)
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Pernicious anemia is a decrease in red blood cells that occurs when the body cannot properly absorb vitamin B12 from the gastrointestinal tract. Vitamin B12 is necessary for the proper development of red blood cells.Pernicious anemia is a type of ...Reviewer: David Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Aslo reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/23/2008
Anemia - B12 deficiency (1 image)(Doctor-Reviewed information)
B12 deficiency anemia is a low red blood cell count due to a lack of vitamin B12.Vitamin B12 is essential for normal nervous system function and blood cell production. The main sources of vitamin B12 include meat, eggs, and dairy products. Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/23/2008
Megaloblastic anemia (3 images)(Doctor-Reviewed information)
Megaloblastic anemia is a blood disorder in which there is anemia with larger-than-normal red blood cells.Megaloblastic anemia is usually caused by a deficiency of folic acid or vitamin B12. Other causes are:.Alcohol abuse Certain inherited disord...Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/23/2008
Hemolytic anemia (5 images)(Doctor-Reviewed information)
Hemolytic anemia is a condition in which there are not enough red blood cells in the blood, due to the premature destruction of red blood cells. There are a number of specific types of hemolytic anemia, which are described individually.Hemolytic a...Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/23/2008
Immune hemolytic anemia (1 image)(Doctor-Reviewed information)
Immune hemolytic anemia is a condition in which there is a reduced blood cell count due to the premature destruction of red blood cells by the immune system.Anemia- immune hemolytic; Autoimmune hemolytic anemia(AIHA).Immune hemolytic anemia occurs...Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/23/2008
Idiopathic autoimmune hemolytic anemia (1 image)(Doctor-Reviewed information)
Idiopathic autoimmune hemolytic anemia is a drop in the number of red blood cells due to increased destruction by the body''s defense(immune) system.Autoimmune hemolytic anemia; Anemia- idiopathic autoimmune hemolytic.Idiopathic autoimmune hemolyti...Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/23/2008
Fanconi's anemia (1 image)(Doctor-Reviewed information)
Fanconi''s anemia is disease passed down through families(inherited) that mainly affects the bone marrow. It results in decreased production of all types of blood cells.Fanconi''s anemia is different from Fanconi syndrome, a rare kidney disorder.Fan...Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and James R. Mason, MD, Oncologist, Director, Blood and Marrow Transplantation Program and Stem Cell Processing Lab, Scripps Clinic, Torrey Pines, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/10/2008
Anemia of chronic disease (1 image)(Doctor-Reviewed information)
Anemia of chronic disease is a blood disorder that results from a long-term(chronic) medical condition that affects the production and lifespan of red blood cells.Reviewer: Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 04/05/2009
Idiopathic aplastic anemia (2 images)(Doctor-Reviewed information)
Idiopathic aplastic anemia is failure of the bone marrow to properly make blood cells.Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 02/12/2009
Secondary aplastic anemia (2 images)(Doctor-Reviewed information)
Secondary aplastic anemia is a failure of the bone marrow to make enough blood cells. All blood cell types are affected.Anemia- secondary aplastic; Acquired aplastic anemia.Secondary aplastic anemia is caused by injury to blood stem cells. Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/23/2008
Thalassemia (2 images)(Doctor-Reviewed information)
Thalassemia is an blood disorder passed down through families(inherited) in which the body makes an abnormal form of hemoglobin, the protein in red blood cells that carries oxygen. The disorder results in excessive destruction of red blood cells a...Reviewer: Todd Gersten, M.D., Hematology/Oncology, Palm Beach Cancer Institute,West Palm Beach, FL. Review provided by VeriMed Healthcare Network. Also reviewed by Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine; Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital; and David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. Date: 01/12/2009
Congenital spherocytic anemia (3 images)(Doctor-Reviewed information)
Congenital spherocytic anemia is a disorder of the surface layer(membrane) of red blood cells. It leads to red blood cells that are shaped like spheres, and premature breakdown of red blood cells( hemolytic anemia).This disorder is caused by a def...Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and James R. Mason, MD, Oncologist, Director, Blood and Marrow Transplantation Program and Stem Cell Processing Lab, Scripps Clinic, Torrey Pines, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. Date: 11/08/2008
Sickle cell anemia (7 images)
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Sickle cell anemia is a disease passed down through families in which red blood cells form an abnormal crescent shape.(Red blood cells are normally shaped like a disc.).Anemia- sickle cell; Hemoglobin SS disease(Hb SS); Sickle cell disease.Hemoglo...Reviewer: Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 04/05/2009
Drug-induced immune hemolytic anemia (1 image)(Doctor-Reviewed information)
Drug-induced immune hemolytic anemia is a blood disorder that occurs when a medicine triggers the body''s defense(immune) system to attack its own red blood cells. This causes red blood cells to break down earlier than normal.Immune hemolytic anemi...Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 03/02/2009
Hemolytic anemia caused by chemicals and toxins(Doctor-Reviewed information)
Hemolytic anemia caused by chemicals and toxins is a lack of enough red blood cells due to factors other than disease.Possible substances that can cause hemolytic anemia include:.Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.Date: 11/23/2008
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