Leukemia is a cancer of the blood-forming tissues in the bone marrow. It is characterized by the rapid production of abnormal white blood cells, which can crowd out healthy blood cells and lead to a variety of symptoms, including fatigue, weakness, bleeding, and infection.
There are a number of different types of leukemia, each with its own unique set of symptoms and treatments. The most common type of leukemia is acute myeloid leukemia (AML), which accounts for about 30% of all cases. Other types of leukemia include acute lymphoblastic leukemia (ALL), chronic myeloid leukemia (CML), and chronic lymphocytic leukemia (CLL).