ABSTRACT
Objective To explore the characteristics and trends of adaptive behavior among patients with breast cancer during the treatment periods. Methods Phenomenological research method was used. 15 women accepted modified radical mastectomy in the Provincial Hospital of Anhui Medical University were interviewed during the whole treatment periods. Results 6 adaptive behavior models were found: over-cautiousness, compliance, escape-avoidance, specific social circles, social re-adaptation and dietary behavior change. These six behavior models dynamicly varied during the treatment trajectory. Conclusions Diagnosis and treatment of breast cancer are strong negative life events, the unalterable trauma of body and the periodic shocks by chemotherapy force patients' self-positioning shifting between "wellness"and "illness"and this shift is the main reason that caused changes of behaviors.