Trained Dogs Detect Cancer Cells with 90% Accuracy, Paving Way for Noninvasive Early Diagnosis

A groundbreaking study from India has demonstrated that trained dogs can identify the chemical signature of malignant cancer cells by smelling masks worn by patients, achieving an accuracy rate of 90%. Professor Eitan Friedman, head of the Genetic Institute for Early Detection at Assuta Ramat Hahayal, explained in an interview that this noninvasive method leverages dogs' exceptional olfactory abilities, long used in search and rescue operations, to revolutionize medical diagnostics.

The scientific basis for this capability lies in the unique volatile chemical compounds emitted by cancerous tissues, which differ from those of healthy tissues and create a distinct scent 'fingerprint.' This discovery opens new avenues for early cancer detection through simple, nonintrusive testing.

In Israel, the field is advancing rapidly with the company SpotitEarly developing technology that surpasses the Indian study's accuracy, reaching 94%. Professor Friedman highlighted this local innovation as a leading example of global progress in scent-based diagnostics.

The ultimate goal is to create an easy-to-use home screening test where individuals wear a special mask for a few minutes to collect breath samples. These samples would then be sent to specialized laboratories for analysis, making early cancer detection more accessible, convenient, and noninvasive than ever before.