If your physician thinks you may have a disorder that involves a specific type of white blood cell, he or she will do a differential count. This determines the relative amounts of each kind of white blood cell. To study how well your body is making new blood cells, your physician may examine a sample of your bone marrow under a microscope. Many problems with your blood can be treated by your physician. Occasionally, you may be referred to a specialist in disorders of the blood, a hematologist.
Some blood disorders are a type of cancer.
Examples include leukemia, lymphoma, and multiple myeloma. They cooperate closely with radiation specialists, who treat cancers with X-rays. Sometimes a physician will specialize in both oncology and hematology. There are various blood disorders. These are divided according to the part of the circulatory system in which they arise.