Janitors have peculiar job responsibilities and adjoining healthcare needs. However, they are usually not allowed access to healthcare facilities of their organizations. Therefore, we assumed that janitors would use informal M-Health without conviction. Surprisingly, we observe that janitors do not use informal M-Health. Our observation is more worrisome because the janitors work in an IT-rich organization that could offer them the platform to use informal M-Health. Our assumption and observation indicate the need to understand the factors influencing the use of informal M-Health among janitors. We adopted the community of practice theory and the interpretive case study method and collected research data through interviews and participatory observation. Our findings reveal the factors that influence the use of informal M-Health. We conclude that janitors may need to use informal M-Health if they are continued to be deprived of access to formal healthcare outlets.