Katie Thurston was recognized with breast most cancers in February 2025 on the age of 34.
“I had a small lump in my breast across the 10’oclock [sic] spot,” the previous Bachelorette wrote through her Instagram Tales that very same month. “I found it myself. Thought possibly it was my interval [or] possibly it was muscle soreness from understanding. However, ultimately, this lump by no means went away.”
Thurston subsequently visited her physician for a mammogram, which indicated the presence of cancerous tissue. She later underwent a biopsy to study extra about the kind of most cancers.
“Excellent news! My most cancers hasn’t metastasize[d],” Thurston shared through her Instagram Tales on February 21, 2025, noting the malignant tissue was confined in her lymph nodes. “Two extra appointments left in LA earlier than formally transferring to NYC [on] March 1st. The anticipated order of issues is fertility (egg/embryo freezing), chemo, then surgical procedure.”
Forward of her most cancers therapy, Thurston moved to the Massive Apple along with her now-husband, Jeff Arcuri. (Thurston and the comic received engaged in late 2024 and married in March 2025.)
“I’m so grateful for my household, pals, and group right here for serving to me make it to my present stage [sic] of thoughts,” she added. “At this time I really feel calm, much less scared, and prepared.”
Preserve scrolling for a full timeline of Thurston’s most cancers battle:
November 2024

Thurston found a lump in her breast in late 2024, noting the next February on her Instagram Tales that the ache continued for “three [or] 4 months.”
“My first lump [which was a benign cyst] felt like a pea or marble [and] exhausting, unnatural, however didn’t trigger me discomfort. The second felt bigger,” she recalled in February 2025. “The ache initially got here and went, however possibly after 3-4 months of it not going away or enhancing, I received nervous and noticed my physician.”
Thurston had a breast ultrasound, a mammogram and a number of biopsies, which confirmed the presence of most cancers.
February 2025
Thurston was recognized shortly earlier than Valentine’s Day, revealing the information publicly a number of hours later.
“Yesterday I noticed all of the {couples} submit their Valentine’s Day celebrations. I felt envious if I’m being sincere. Jeff took me to Hawaii and after, we had been going to journey the world earlier than planting roots collectively in NYC lastly,” she wrote through Instagram on February 15. “However as an alternative, my Vday was spent coordinating a spot to reside as I’ve to return to LA for extra testing and therapy.”
She added, “I used my morning to determine insurance coverage for NYC and legal guidelines on preexisting circumstances. I scheduled appointments for one more biopsy, fertility, psychological well being, surgical procedure, in addition to assembly with my group to debate the general therapy plan, which is able to embody chemo.”
March 2025
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September 2025
Thurston gave an replace on her plans for therapy. After some scans got here again “a bit of regarding,” her physician lowered her remedy dosage from three tablets to 2 a day.
“That has labored for my liver enzymes, that means I don’t must pause my therapy, I can proceed my therapy,” she stated in a July 2025 Instagram video. “The larger check on if that is working nonetheless, is subsequent month I’ll get rescanned to see how a lot the tumor has shrunk.”
If her subsequent spherical of scans comes again good, Thurston will have the ability to bear a double mastectomy in November.