Emotional satisfaction can develop after the positive or negative emotions experienced about a purchased garment, shoe or cosmetic product are transferred to another consumer. This sharing, which can be considered as emotional satisfaction for the consumer, turns into a positive or negative purchasing experience and a positive or negative product recommendation in terms of marketing. Moreover, this situation is not only about a goods, but also about many sectors such as entertainment, health and education. For example, the positive or negative experience of a consumer who receives health care from a hospital turns into a recommendation about this hospital to their immediate surroundings. This study aims to evaluate to what extent the negative emotions of service recipients in the healthcare sector may affect negative word of mouth marketing. In this study, which is an empirical research, the survey scale developed by Wen-Hai et al. (2018) was used as the data collection method. At the end of the study, it was observed that individuals' anger levels significantly affected their desire for revenge and negative WOM levels.