Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
In this Expert Recommendation, Faupel-Badger and colleagues present a conceptual framework to define precancer and advance our understanding of the earliest changes that occur in the progression to overt cancer, providing novel opportunities to intervene to prevent or treat their emergence.