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  1. Leukemia - Symptoms and causes - Mayo Clinic

    Dec 20, 2024 · Leukemia is cancer of the body's blood-forming tissues, including the bone marrow and the lymphatic system. Many types of leukemia exist. Some forms of leukemia are more common in …

  2. Leukemia: Symptoms, Signs, Causes, Types & Treatment

    May 18, 2022 · What is leukemia? Leukemia is a cancer of the blood, characterized by the rapid growth of abnormal blood cells. This uncontrolled growth takes place in your bone marrow, where most of …

  3. Overview of Leukemia - Hematology and Oncology - MSD Manual ...

    Overview of Leukemia - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the MSD Manuals - Medical Professional Version.

  4. Leukemia—Patient Version - NCI - National Cancer Institute

    Overview Leukemia is a broad term for cancers of the blood cells. The type of leukemia depends on the type of blood cell that becomes cancer and whether it grows quickly or slowly. Leukemia occurs most …

  5. Leukemia - American Cancer Society

    Leukemia is a cancer of the early blood-forming cells. Most often, leukemia is a cancer of the white blood cells, but some leukemias start in other blood cell types.

  6. Leukemia (Overview) - Harvard Health

    Oct 8, 2024 · Leukemia is a form of cancer that affects the body's ability to make healthy blood cells. It starts in the bone marrow, the soft center of various bones. This is where new blood cells are made. …

  7. Leukemia Overview: Symptoms, Signs, Treatment and Causes | Pfizer

    What is leukemia? Learn about the types of leukemia, leukemia causes, common symptoms, and available treatments for the disease.

  8. Leukemia: Overview and More - Verywell Health

    Aug 26, 2025 · Acute leukemias are the most common cancer in children, but in general, leukemia is more common in older adults. While the exact cause of leukemia is unknown, risk factors include …

  9. Leukemia - Johns Hopkins Medicine

    Leukemia is cancer that starts in the bone marrow. The bone marrow is where new blood cells are made. Leukemia cells are early forms of blood cells. They are usually white blood cells. When you …

  10. Leukemia | Definition, Causes, Symptoms, & Treatment | Britannica

    Jan 6, 2026 · Leukemias are defined as either acute or chronic and as either myelogenous (from bone marrow) or lymphocytic (involving lymphocytes). These characteristics are used to designate almost …