Sydney Towle, a 26-year-old content creator who shared nearly three years of life with cholangiocarcinoma, died at the National Institutes of Health in Maryland; her family confirmed the news in a video on her TikTok account, where she had more than a million followers.

Sydney Towle made a public choice to document a brutal and rare cancer from the moment doctors diagnosed her at 23. She turned treatment rooms, running routes, and nights out into a long-form conversation with an audience that watched her try to live fully while fighting an aggressive bile duct cancer. Her family announced her death in a TikTok video posted to the account that had become central to her story.

“Syd went peacefully last night after an almost three-year long battle with cholangiocarcinoma. She fought really hard, and we’re so proud of her, and we thank all of you for your support over the years.”

Towle was born on November 15, 1999, in Newburyport, Massachusetts, and raised in Hobe Sound, Florida. She graduated from Dartmouth College in 2022, where she studied government and environmental studies, and later worked as a social media manager at Epic Games. Those biographical details became the backdrop for a public life increasingly defined by grit and a refusal to disappear from view.

The diagnosis arrived in August 2023 and changed her plans but not her voice. Days after learning she had cholangiocarcinoma, she posted a video that set the tone for everything that followed and chose to keep the camera rolling as she navigated treatments and the small, stubborn pleasures of living. Her openness drew a community that followed chemotherapy sessions, hospital stays, travel, and moments of joy with the same attention they gave the hard parts.

“I’m in good spirits, I’m smiling. If anything, it just makes me appreciate life more.”

Towle did not hide the difficult medical realities, but she also refused to be defined only by them. She used her platform to run, laugh, and show adaptive fashion, including walking a runway at Miami Swim Week in designs suited to post-cancer bodies. Her videos captured both the clinical and the human sides of a rare illness that typically affects older adults, and that contrast made her case feel especially striking.

She also turned what she could into tangible support for others. Months before her death, she announced plans to run the 2026 New York City Marathon to raise funds for the Cholangiocarcinoma Foundation, a nonprofit that backs research and assists patients and caregivers. Towle raised more than $10,000 for the foundation, an amount that meant more than numbers; it signaled how a personal fight can catalyze attention and resources for a little-known disease.

“I know it might seem crazy to try to run a marathon with everything going on. Hope keeps us alive, it keeps us going, it makes the impossible seem possible.”

Her mother, Elizabeth Morrow, and brother, Austin Towle, carried the public side of the family’s grief in the same open way Sydney had lived. Morrow wrote about how strangers reached out to say they had been helped by Sydney’s vulnerability, and she used that attention to call for more research funding for a cancer that draws little of the spotlight. The family’s willingness to speak has kept a conversation about missed diagnoses and rare cancers in the public eye.

“Thousands of people send her messages, stop her on the street and leave comments on her videos, describing how her vulnerability has helped them through their own struggles.”

The Towle family knows loss: Sydney’s father, Philip Towle, died in 2016 when she was a teenager, and a decade later the family again stood before a camera to say goodbye. The scale of Sydney’s audience—more than a million followers—meant the family’s grief played out in public, a modern form of mourning tied to social media’s reach. That visibility brought both messages of support and a spotlight on the ways illness intersects with online life.

Cholangiocarcinoma is rare in young people, and Towle’s diagnosis at 23 made her case medically uncommon and emotionally resonant. She didn’t use her platform to complain about fate; she used it to insist on living with purpose and to encourage others that hope and action can coexist with treatment. She was 26 years old and leaves behind a mother, a brother, and a community shaped by her willingness to be real and relentless at once.