The high manual work load can therefore cause Material Safety Data Sheets amongst the loggers. This pathology risk increases with the component ‘vibration’ induced by chainsaws, tractors, skidders and other machineries. In this study we have considered different logger groups working in saw mills and we have analysed their Material Safety Data Sheets risk exposure, the typical case of manual workers in a saw mill process in northern Karnataka State, India is investigated. Most workers are male.