Method for Diagnosing Cancer Using Exhaled Gas

The present invention relates to a method for diagnosing cancer which is characterized by detecting a volatile organic compound specifically comprised in an exhaled gas of a cancer patient and, more specifically, to a method for providing information for diagnosing cancer comprising a step of measuring the presence of a substance having the molecular weight (i) 69, (ii) 131, and (iii) 181 which is an ionized fragment of a cancer-specific VOC from an exhaled gas taken from a suspected cancer patient. According to the present invention, a cancer can be early diagnosed non-invasively from an exhaled gas of a cancer patient with high sensitivity, therefore the cancer can be economically and rapidly diagnosed compared with an existing cancer diagnosis method.