Leukemia is a type of odd cancer. It affects the white blood cells in the blood stream. Leukemia can start either in the bone marrow or the lymph system.
Abnormal cells accumulate and interfere with the production of healthy blood cells.
There are four known types of leukemia. These types are chronic myeloid, acute myeloblastic, chronic lymphocytic, and acute lymphoblastic. All these types can be deadly, but they develop over different periods of time. The cause of leukemia is actually unknown, but there are risk factors. Certain viruses can cause leukemia as well as exposure to chemicals like benzene and exposure to atomic radiation.