We usually think of body odor as a hygiene issue, but science is now exploring it as a diagnostic tool. Our body releases chemical compounds through sweat, breath, and skin. When we are sick, these compounds can change—and those changes may carry clues about our health.
Recent studies show that diseases like diabetes, liver failure, tuberculosis, and even cancer can produce unique smells. For example, diabetic patients may have a fruity smell due to high ketone levels. Liver disease can cause a musty odor. These changes happen because of chemical reactions inside the body, and they can be detected before symptoms appear.
Some researchers are training dogs to sniff out diseases like cancer and COVID-19. Others are building electronic noses—devices that use sensors and AI to detect specific scent patterns. These tools could help doctors diagnose illness early, especially in places with limited access to lab tests.
This field is called “volatilomics”—the study of volatile organic compounds (VOCs) released by the body. It’s still new, but it shows promise for non-invasive, fast, and low-cost diagnosis.
Imagine a future where a simple breath test or skin sensor could detect illness before it becomes serious.
Body odor isn’t just a smell—it’s a signal.
Let’s start seeing it as a possible key to early diagnosis and better health.
MBH/PS