Definition of Anemia
Anemia: The condition of having a lower-than-normal number of red blood cells or quantity of hemoglobin. Anemia diminishes the capacity of the blood to carry oxygen. Patients with anemia may feel tired, fatigue easily, appear pale, develop palpitations, and become short of breath. Children with chronic anemia are prone to infections and learning problems. The main causes of anemia are bleeding, hemolysis (excessive destruction of red blood cells), underproduction of red blood cells (as in bone marrow diseases), and underproduction of normal hemoglobin (as in sickle cell anemia and in iron deficiency anemia). Women are more likely than men to have anemia because of menstrual blood loss. In children, anemia is most commonly due to insufficient iron in the diet. Anemia is also often due to gastrointestinal bleeding caused by medications, including such common drugs as aspirin and ibuprofen.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 3/19/2012
Medical Dictionary Definitions A - Z
Search Medical Dictionary
- How Is Atrial Fibrillation Affecting You?
- Men and Iron Supplements
- Are We Close to a Cure for Cancer?
- Early Care for Your Premature Baby
- What to Eat When You Have Cancer
- When to Take More Pain Medication