anemia primary causes
Causes of iron deficiency anemia include: 1  Blood loss. 2  A lack of iron in your diet. 3  An inability to absorb iron.  Pregnancy. Anemia is a condition in which the body has fewer red blood cells than normal. Red blood cells carry oxygen to tissues and organs throughout the body and enable them to use energy from food. Anemia commonly occurs in people with chronic kidney disease (CKD)—the permanent, partial loss of kidney function. Iron deficiency anemia occurs when your body doesn't have enough iron to produce hemoglobin. Hemoglobin is the part of red blood cells that gives blood its red color and enables the red blood cells to carry oxygenated blood throughout your body. As a result, the bone marrow makes fewer red blood cells, causing anemia. When blood has fewer red blood cells, it deprives the body of the oxygen it needs. Other common causes of anemia in people with kidney disease include blood loss from hemodialysis and low levels of the following nutrients found in food: iron. Anemia - secondary aplastic; Acquired aplastic anemia. Secondary aplastic anemia is caused by injury to blood stem cells. Normal blood stem cells divide and turn into all blood cell types, mainly white blood cells, red blood cells, and platelets. When blood stem cells are injured, there is a reduction in all blood cell types. There are many types of anemia. All are very different in their causes and treatments. Iron-deficiency anemia, the most common type, is very treatable with diet changes and iron supplements. Some forms of anemia -- like the mild anemia that develops during pregnancy -- are even considered normal. Blood Loss. Blood loss is the most common cause of anemia, especially iron-deficiency anemia. Blood loss can be short term or persist over time. Heavy menstrual periods or bleeding in the digestive or urinary tract can cause blood loss. Surgery, trauma, or cancer also can cause blood loss. Known causes of hemolytic anemia may include: 1  Inherited conditions, such as sickle cell anemia and thalassemia. 2  Stressors such as infections, drugs, snake or spider venom, or certain foods. 3  Toxins from advanced liver or kidney disease. Causes of iron deficiency anemia include: 1  Blood loss. Blood contains iron within red blood cells. 2  A lack of iron in your diet. Your body regularly gets iron from the foods you eat. 3  An inability to absorb iron. Iron from food is absorbed into your bloodstream in your small intestine.  Pregnancy. Iron-deficiency anemia occurs because of a lack of the mineral iron in the body. Bone marrow in the center of the bone needs iron to make hemoglobin, the part of the red blood cell that transports oxygen to the body's organs. Without adequate iron, the body cannot produce enough hemoglobin for red blood cells.
Blood loss, a lack of iron in your diet, an inability to absorb iron, pregnancy, chronic kidney disease, bone marrow makes fewer red blood cells, blood loss from hemodialysis, low levels of iron.