Anemia Overview
Learn About 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.
Different types of anemia include:
- Anemia due to vitamin B12 deficiency
- Anemia due to folate (folic acid) deficiency
- Anemia due to iron deficiency
- Anemia of chronic disease
- Hemolytic anemia
- Idiopathic aplastic anemia
- Megaloblastic anemia
- Pernicious anemia
- Sickle cell anemia
- Thalassemia
Iron deficiency anemia is the most common type of anemia.
Although many parts of the body help make red blood cells, most of the work is done in the bone marrow. Bone marrow is the soft tissue in the center of bones that helps form all blood cells.
Healthy red blood cells last between 90 and 120 days. Parts of your body then remove old blood cells. A hormone called erythropoietin (EPO) made in your kidneys signals your bone marrow to make more red blood cells.
Hemoglobin is the oxygen-carrying protein inside red blood cells. It gives red blood cells their color. People with anemia do not have enough hemoglobin.
The body needs certain vitamins, minerals, and nutrients to make enough red blood cells. Iron, vitamin B12, and folic acid are three of the most important ones. The body may not have enough of these nutrients due to:
- Changes in the lining of the stomach or intestines that affect how well nutrients are absorbed (for example, celiac disease)
- Poor diet
- Surgery that removes part of the stomach or intestines
Possible causes of anemia include:
- Iron deficiency
- Vitamin B12 deficiency
- Folate deficiency
- Certain medicines
- Destruction of red blood cells earlier than normal (which may be caused by immune system problems)
- Long-term (chronic) diseases such as chronic kidney disease, cancer, ulcerative colitis, or rheumatoid arthritis
- 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
- Slow blood loss (for example, from heavy menstrual periods or stomach ulcers)
- Sudden heavy blood loss
Common conditions include: Aplastic Anemia, Autoimmune Hemolytic Anemia, Childhood Iron Deficiency Anemia, Congenital Aplastic Anemia
You may have no symptoms if the anemia is mild or if the problem develops slowly. Symptoms that may occur first include:
- Feeling weak or tired more often than usual, or with exercise
- Headaches
- Problems concentrating or thinking
- Irritability
- Loss of appetite
- Numbness and tingling of hands and feet
If the anemia gets worse, symptoms may include:
- Blue color to the whites of the eyes
- Brittle nails
- Desire to eat ice or other non-food things (pica syndrome)
- Lightheadedness when you stand up
- Pale skin color
- Shortness of breath with mild activity or even at rest
- Sore or inflamed tongue
- Mouth ulcers
- Abnormal or increased menstrual bleeding
Treatment should be directed at the cause of the anemia, and may include:
- Blood transfusions
- Corticosteroids or other medicines that suppress the immune system
- Erythropoietin, a medicine that helps your bone marrow make more blood cells
- Supplements of iron, vitamin B12, folic acid, or other vitamins and minerals
Banu Aygun is a Pediatric Hematologist Oncology specialist and a Hematologist in New Hyde Park, New York. Dr. Aygun and is rated as an Elite provider by MediFind in the treatment of Anemia. Her top areas of expertise are Sickle Cell Disease, Congenital Hemolytic Anemia, Hemoglobinopathy, Hemolytic Anemia, and Splenectomy.
Jeffrey Lipton is a Pediatric Hematologist Oncology specialist and a Pediatrics provider in New Hyde Park, New York. Dr. Lipton and is rated as an Elite provider by MediFind in the treatment of Anemia. His top areas of expertise are Aase Syndrome, Pure Red Cell Aplasia, Aplastic Anemia, Transient Erythroblastopenia of Childhood, and Bone Marrow Transplant.
New York University
Marc Braunstein is a Hematologist Oncology specialist and a Hematologist in Mineola, New York. Dr. Braunstein and is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are Multiple Myeloma, Schnitzler Syndrome, Pseudocholinesterase Deficiency, Bone Marrow Aspiration, and Bone Marrow Transplant.
Severe anemia can cause low oxygen levels in vital organs such as the heart, and can lead to heart failure.
Contact your provider if you have any symptoms of anemia or unusual bleeding.
Summary: The ICARUS 2 study has the general objective of collecting data in patients undergoing cardiac surgery; in our centre, in order to optimize and improve hemoglobin values, a team of haematologists, assisted by cardio anesthetists and cardiac surgeons, will evaluate the blood tests of patients scheduled for elective cardiac surgery in order to correct any states of hypoferritinemia (low iron in the ...
Background: Fanconi anemia (FA) is a rare, inherited cancer syndrome. FA causes a range of physical issues. Children with FA may have abnormal features; these may include a small head and eyes and issues with their internal organs. Young adults have a much higher risk of cancer. To screen for these cancers, people with FA may need to pursue many visits with different doctors. This constant need for cancer scr...
Published Date: March 31, 2024
Published By: Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. Editorial update 12-17-2024.
Elghetany MT, Banki K. Erythrocytic disorders. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 33.
Lin JC, Benz Jr. EJ. Approach to anemia in the adult and child. In: Hoffman R, Benz EJ, Silberstein LE, et al, eds. Hematology: Basic Principles and Practice. 8th ed. Philadelphia, PA: Elsevier; 2023:chap 35.
Means Jr. RT. Approach to the anemias. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 144.