At chronic inflammatory diseases (including infectious) anemia often develops. Usually anemia appears at purulent diseases of lungs and other organs a month later after beginning of illness.
The hemoglobin content falls to 110-90 g/l. There is a norm chrome anemia – color and sizes of red blood cells, as a rule are within norm. Level of ferritin protein transferring iron in bloods is in norm, but the content of serum iron is decreased.
Sometimes anemia becomes the main symptom of latent disease, for example, of an urinary system (often at elderly people), an infectious endocarditis, suppuration in abdominal cavity. Any inexplicable depression of level of hemoglobin requires thorough research regarding the hidden inflammatory processes and tumors.
At patients with bronchial asthma or obstructive bronchitis anemia develops because of disadvantage of copper and zinc, though iron is in norm. It proves use in treatment of zinc – and copper containing medicines.
Bacterial and viral diseases can be also followed by anemia; some parasites (ameba) are capable to lead to strongly marked anemia.
The anemia which developed against illness recognized the basic, usually doesn’t require special treatment, efforts should be aimed on elimination of a basic disease. It is necessary to specify character of anemia in each case and to distinguish it from the genuine.