Leukemia – Cause & Risk Factors
While the precise causes of leukemia remain unclear, certain factors have been identified that may increase the likelihood of developing the disease.
Known Risk Factors for Leukemia Include:
- Genetic Factors: Individuals with certain genetic syndromes, such as Down syndrome, are at higher risk for leukemia. Specific inherited genes may also predispose individuals to developing the disease.
- Environmental Exposure: Long-term exposure to high levels of radiation—such as that from nuclear accidents—or exposure to chemicals like benzene (found in cigarette smoke and industrial emissions) has been linked to an increased risk of leukemia.
- Age: The incidence of leukemia increases with age, though acute forms can occur in children as well.
- Family History: Individuals with a family history of leukemia or other blood cancers are at a higher risk, indicating a potential genetic component.
- Previous Cancer Treatment: Those who have undergone chemotherapy or radiation for other cancers may have an elevated risk of developing leukemia later on.




