Woman Claims She Detected Her Own Cancer by Smell; Experts Debate Human Ability to Detect Disease This Way
A TikTok user named Kate went viral for claiming she detected Non-Hodgkin's Lymphoma and later thyroid cancer by noticing unusual odors on her clothes and sheets before receiving a diagnosis. Cancer can produce volatile organic compounds (VOCs) that alter body odor, and some research suggests trained dogs can detect these scents with high accuracy, but experts debate whether humans can reliably smell cancer themselves. The case highlights growing interest in olfactory biomarkers for early cancer detection, though the scientific consensus remains that human smell alone is not a reliable diagnostic tool.
A woman identified as Kate shared a viral TikTok video describing how she detected her own cancer diagnoses twice by noticing distinctive smells on her clothing and bedding—comparing the scent to a hangover mixed with rotting wood and cinnamon. She was subsequently diagnosed with Non-Hodgkin's Lymphoma, and after treatment, the smell disappeared only to return when she developed thyroid cancer months later. Medical experts acknowledge that certain cancers do produce volatile organic compounds (VOCs) through abnormal cell growth, which can be detected in breath, urine, saliva, and blood; polyamines found in cancer patients' blood and urine may produce detectable odors. Research has linked specific cancers to characteristic smells—sulfuric odors to colon cancer, changes in vaginal discharge scent to cervical cancer—and higher VOC levels have been found in breast, lung, prostate, and bladder cancer patients. However, scientists debate whether humans possess sufficient olfactory sensitivity to detect these compounds reliably before diagnosis, while noting that dogs possess 1,000 to 100,000 times more powerful smell and have demonstrated 98% accuracy in detecting cancer from breath and urine samples in some studies.
What's missing
The article does not provide information about the scientific mechanisms explaining individual variation in human olfactory sensitivity, whether Kate's claimed ability has been clinically tested or verified, or the specific limitations and sample sizes of the dog-detection study cited (which found 98% accuracy). Additionally, the article does not clarify whether the smell Kate detected could have been caused by her cancer or by other factors such as infection, inflammation, or chemotherapy side effects occurring simultaneously.
What different sources said
- New York PostRight
I could smell that I had cancer before I was diagnosed
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