This paper is part of ongoing research seeking to explore why doctors volunteering online through health virtual community (HVC). Although many studies have investigated the reasons individual volunteer online, there has been scant research on the decision that influence doctors to participate online via HVC. Here, researchers report on the factors that influence doctors to volunteer online in HVC as the doctor's heavy workload may postulated source of work-family conflict. A qualitative case study approach was used to explore and understand why doctors volunteering online in a HVC called DoktorBudak.com (DB). Seventeen semi-structured interviews were conducted with pediatricians and pediatricians related specialists. Important factors related to technological and human aspects were identified. Factors were related to information and communication technology (ICT), knowledge sharing, peers influence and rewards. This qualitative study offer some unique insights about factors affecting doctors volunteering online in HVC, which were rarely addressed in the existing literature of online volunteer. Since the healthcare system is undergoing the digitalization revolution through the inception of the HVCs, this study had discussed the factors that must be in place for digital systems to be operative.