There are others still under investigation as well, such as radon.
Ethnicity
Racial differences in incidence differ between the types of leukemia.
Radiation
Some types of radiation are known risk factors for leukemia, and others are only possible risk factors.

Illustration by Verywell
Genetic syndromes may also increase the risk of leukemia (see below).
At the current time, it’s thought that around 20 percent of AML cases are linked to smoking.
Sucralose
There has been controversy surrounding a possible connection between the artificial sweetenersucralose and cancer.
Ideally, any of these products should be used sparingly in a healthy diet.)
This level of exposure, however, is not common.
Genetics
The role of family history and genetics varies between the different types of leukemia.
In contrast, family history plays an important role in CLL.
Family history doesn’t appear to play a significant role in the development of CML.
Some of the common signs and symptoms include:
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