The stigma process experienced by women diagnosed with cervical precancerous lesions was conceptualized based on interview surveys and literature reviews, and its content validity was verified. The study consisted of two parts. Part 1 involved creating a conceptual model of the stigma process from stigma experiences obtained from interview surveys and scoping reviews. In Study 2, an expert verified the content validity. The conceptual model was evaluated based on questionnaire and interview surveys of the participants, women diagnosed with cervical precancerous lesions, doctors, nurses, and specialist nurses involved in medical care. The conceptual model’s development and evaluation was based on the conceptual model of lung cancer stigma by Hamann et al. (2014). The results showed that “disease recognition,” “social support,” “body image,” and so on act as [moderators of the stigma process] and influence stigma experiences and their outcomes. In terms of stigma experience, [perceived/felt stigma] such as “accusations of being a patient with a sexually transmitted disease” and “misconceptions about the source of infection,” [internalized/self-stigma] such as “feelings of regret for past actions” and “feelings of shame about being afflicted,” and [anticipatory stigma] of “anxiety about prejudice caused by morbidity” affected each other and contributed to a more intense stigma experience. Consequently, patients fall into [maladaptive consequences] such as “avoiding relationships with others” and experiencing a “loss of identity.” On the other hand, the results also showed that moderators act as buffer factors and can lead to [adaptive consequences] such as “acquisition of new identities.” Nurses need to support women to help the delator to act as a buffering factor, to inhibit the reinforcement of the mutual process of stigma, and to help guide them from maladaptive outcomes to adaptive outcomes.