Major Types of Blood Disorders
Red Blood Cells: Polycythemia Vera

Polycythemia vera, though the causes are unknown, happens when the body makes too many red blood cells. Typically, excess red blood cells do not create problems in the body, however, in some individuals it may result in blood clots forming in the body, stopping the flow of blood to vital areas, and other patients may experience other symptoms such as thickening of the blood that results in bleeding. If left untreated, polycythemia vera can process into more serious forms of cancer such as myelofibrosis.
White Blood Cells: Lymphoma

Lymphoma, though it is a major blood disorder, is better known as a form of cancer in white blood cells start multiplying and spreading in the bloodstream abnormally. Most individuals believe extra white blood cells are a good thing because they are well known to help fight against infection. However, abnormal white blood cells do not behave the same as healthy white blood cells and will actually impede against normal bodily function. Treatment for this cancer typically includes radiation therapy as well as chemotherapy.