Leukemia is cancer of the body's blood-forming tissues, which includes the bone marrow as well as the lymphatic system. There are several types of leukemia, and some even affect the children, however, mostly leukemia occurs in adults.

Leukemia is cancer of the body's blood-forming tissues, which includes the bone marrow as well as the lymphatic system. There are several types of leukemia, and some even affect the children, however, mostly leukemia occurs in adults.