The 2021 "Bachelorette" lead said her cancer has metastasized, and she now has stage IV breast cancer. But she remains "optimistic on my outcome."

Former “Bachelorette” Katie Thurston confirmed on Instagram March 28 that her breast cancer is Stage 4 and has spread to her liver. In a candid update to viewers, set 43 days after she received a cancer diagnosis, Thurston shared that she has not started treatment yet due to testing and her decision to “focus on fertility" beforehand.

I know stage four can sound very scary, and it can be,” Thurston told her followers, adding that she is still “very optimistic” about her outcome.