Leukemia is a form of cancer that originates in the blood and bone marrow, impacting the production of white blood cells. This disease is categorized into different types based on the specific white blood cell affected, with major classifications including acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), and chronic myeloid leukemia (CML).
The exact cause of leukemia is often unknown, but certain factors increase the risk of its development. These factors include genetic mutations, exposure to certain chemicals or radiation, a family history of leukemia, and genetic disorders such as Down syndrome. The disease manifests through the abnormal proliferation of white blood cells, leading to symptoms such as fatigue, pale skin, frequent infections, unexplained weight loss, and swollen lymph nodes.
Diagnosing leukemia involves a combination of blood tests, bone marrow aspiration, and imaging studies. Once diagnosed, the specific type of leukemia guides the treatment approach. Common treatments include chemotherapy, targeted therapy, radiation, and stem cell transplantation. The primary goal is to eliminate abnormal cells and restore the normal production of blood cells.
The prognosis for leukemia varies based on factors such as the type of leukemia, the patient's age, overall health, and treatment response. Advances in medical research and treatment protocols have significantly improved outcomes for many leukemia patients. Personalized and targeted therapies are increasingly employed to tailor treatment plans to individual characteristics.