Disease encyclopedia/Blood, immune & lymph
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    Blood, immune & lymphCancerICD-10 C91–C95

    Leukaemia

    Also called: Leukemia, ALL, AML, CLL, CML

    Cancers of blood-forming cells in the bone marrow. Acute leukaemias progress rapidly; chronic forms develop slowly.

    Condition-specific references are below. Individual claims and this page have not been clinically reviewed. Read about this content.

    Affected: Bone marrow, Blood

    Causes

    • Genetic mutations in blood stem cells (e.g. BCR-ABL in CML)

    Risk factors

    • Previous chemotherapy or radiation
    • Benzene
    • Smoking
    • Down syndrome

    Symptoms

    • Fatigue and pallor
    • Frequent infections
    • Easy bruising and bleeding
    • Fever and night sweats
    • Bone pain
    • Swollen lymph nodes or spleen

    Diagnosis — tests and examinations

    • Full blood count and blood film
    • Bone marrow biopsy
    • Flow cytometry and genetic testing

    Treatment

    Medicines and medical treatment

    • Chemotherapy
    • Targeted therapies (imatinib for CML, venetoclax, BTK inhibitors for CLL)
    • Immunotherapy and CAR-T cells

    Operations and procedures

    • Allogeneic stem cell transplant

    Self-care, home remedies and lifestyle

    • Infection precautions during treatment

    Possible complications

    • Infections
    • Bleeding
    • Tumour lysis syndrome

    Prevention

    • Avoid benzene and smoking

    Outlook

    Childhood ALL cure rates about 90%; outcomes vary by type.

    When to see a doctor

    See a doctor for unexplained bruising, recurrent infections or persistent fatigue.

    Sources and further reading

    These sources cover this condition. They have not been checked against every statement on this page.

    • Leukemia — MedlinePlus (U.S. National Library of Medicine)

    Related conditions

    Iron-deficiency anaemiaThalassaemiaSickle cell diseaseSystemic lupus erythematosusVitamin B12 deficiency (pernicious anaemia)Multiple myeloma

    Educational overview, not medical advice. Treatment varies by person and location. Consult a qualified health professional for diagnosis or care. Read our content and model notes and privacy information.

    Affected: Bone marrow, Blood

    On this page

    • Causes
    • Risk factors
    • Symptoms
    • Diagnosis — tests and examinations
    • Treatment
    • Complications
    • Prevention
    • Outlook
    • When to see a doctor
    • Sources