Best-selling author Colleen Hoover announced she is undergoing radiotherapy, sharing a selfie from a hospital in an Instagram post.
She has not disclosed further details about her diagnosis, which follows her missing press events for her film adaptation Regretting You due to “unavoidable surgery.”
Hoover is widely known for her novel It Ends With Us, which has sold over 10 million copies and contributed to her 50 million worldwide book sales.
The Hollywood adaptation of the book, starring Blake Lively and Justin Baldoni, achieved box office success but was marred by legal disputes between the lead actors.
Hoover, who served as an executive producer, expressed her disappointment regarding the “ugliness” of the legal drama surrounding the film.