The general mechanism of the development of anemia is a decrease or loss of the ability of the bone marrow to make red blood cells (red blood cells). In the case of accession to the said fact infection anemia can lead to death.
In medicine, the following types of anemia.
1 hemorrhagic anemia. Arises as a result of significant blood loss. Patients show severe weakness, tinnitus, heart palpitations, shortness of breath, feeling of heaviness in the sternum in the heart, impaired vision. Patient as thirsty as a result of dehydration of body tissues. Possible fainting.
2 Iron-deficiency anemia. Arises from a lack of iron in the body. The most common cause is a lack of disruption of the digestive system. In patients of this category in addition to general symptoms of anemia marked dysgeusia (eating chalk, clay).
Under normal regular diet, lack of appetite reduction, there is increased pallor. There are many cases of diarrhea.
3 Pernicious anemia. The occurrence of the disease due to a lack of cyanocobalamin – vitamin B 12 Previously, this disease was considered malignant, in the absence of treatment. Most often, the disease is associated with malnutrition, and lack of body gastromukoproteina that promotes assimilation of vitamin B 12 As a result, disturbed maturation of red blood cells. A connection of this type of anemia with the presence of patients with chronic gastritis.
4 Hemolytic anemia. Appears in the process of disintegration of erythrocytes. The thing is that with this disease observed anomaly hematopoiesis. Erythrocytes are produced by the body, are extremely brittle and fragile, are particularly permeability membranes and thus subject to rapid degradation.
5 Aplastic anemia. Occurs when ugnetenii bone marrow function. This happens due to various infections and toxic substances, including radiation.