| Leukemia is a disease of the bone marrow and blood | | | | controlled way. Leukemia perturbs the normal |
| that is known to affect normal blood cell production. | | | | development of blood cells and causes the |
| Normal blood cells have a limited period of life and | | | | accumulation of partially developed cells, that aren't |
| they need to be constantly replaced by fresh, young | | | | able to fulfill their role inside the organism. |
| cells to carry on their activity. There is a type of cell | | | | Judging by the speed of development and the |
| within the bone marrow (stem cell) that matures into | | | | persistence of the disorder, there are two types of |
| the type of blood cells that the body needs. In | | | | leukemia: acute leukemia and chronic leukemia. Judging |
| normal condition, these stem cells develop either into | | | | by the types of stem cells affected by the disorder, |
| red blood cells, white blood cells or platelets, into a | | | | leukemia can either be lymphocytic or myelogenous. |