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Woman, 30, Says Oura Ring Detected 1st Sign She Had Stage 4 Cancer — 8 Months Before Doctors Did

In April 2025, Philadelphia resident Casey Cattie received a diagnosis of advanced Hodgkin lymphoma after noticing symptoms and undergoing evaluation following a medical emergency while abroad.
Cattie's diagnosis followed months of symptoms like night sweats and fevers and a pleural effusion detected by doctors during her travel in Iceland.
She first noticed troubling health patterns through her Oura Ring, which alerted her to fever and illness signs before doctors confirmed cancer.
Cattie mentioned that she began receiving frequent fever alerts and is currently scheduled for a series of 12 chemotherapy and immunotherapy treatments, administered biweekly.
More than halfway through treatment by early August 2025, Cattie hopes her story encourages others to advocate for their health and trust their instincts.

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Woman, 30, says Oura Ring detected 1st sign she had stage 4 cancer — 8 months before doctors did

Last August, Casey Cattie began waking up in the morning soaked in sweat. “I wasn’t hot. I was actually cold because I was under a fan,” Cattie, 30, of Philadelphia, tells TODAY.com. “It was completely drenching night sweats.” She had been wearing an Oura Ring a friend gave her, and since the nightsweats started, it often informed her that she was “showing sings of major illness.” Cattie saw multiple doctors to get to the bottom of the changes i…

2 days ago·San Francisco, United States

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