You may already know that some types of colon polyps can develop into colorectal cancer. Or, that cervical dysplasia can sometimes lead to cervical cancer.

But did you also know that conditions called MGUS and smoldering myeloma can turn into multiple myeloma? Or, that myelofibrosis and myelodysplastic syndrome can eventually become acute myeloid leukemia?

Here’s what to know about these precancerous conditions and how to...