Clinical Feasibility of Mobile App-Based Self-Management for Breast Cancer-Related Lymphedema

Inclusion Criteria: * Between 18 and 70 years of age * Diagnosed with breast cancer-related unilateral upper limb lymphedema * Possessing an Android or iOS smartphone * Voluntarily deciding to participate and providing written consent after receiving a detailed explanation of this study Exclusion Criteria: * Diagnosed with malignant lymphedema due to metastasis or recurrence * Having severe comorbidities (underlying diseases, neuromusculoskeletal disorders, cognitive, mental, or visual impairments, etc.) that make it difficult to use the application and participate in exercise interventions Discontinuation Criteria: * Development of serious complications or cancer metastasis/recurrence during the study period * Occurrence of a serious illness unrelated to study participation * Failure to follow the instructions of the study physician * Voluntary withdrawal from the study or development of circumstances preventing participation