Currently, breast cancer survival rates have been increasing. However, breast cancer survival affects individuals either positively or negatively, has physical, psychological and social dimensions, and the problems experienced are im- portant determinants of the decline in quality of life. At this point, improve- ment of quality of life requires effective management and a holistic approach to the problems experienced. It is important for healthcare professionals to explain the positive and negative changes occurring during the post-treat- ment period when assessing the post-treatment psychosocial needs of breast cancer survivors with a holistic approach and planning effective interventions. Therefore, the purpose of this article is to explain the positive and negative effects experienced by breast cancer survivors during the post-treatment peri- od in accordance with the relevant literature. The investigation revealed that breast cancer survivors experienced many biopsychosocial problems during the post-treatment period and that the studies in the relevant literature mostly focused on negative physical changes. It is recommended that health person- nel should be aware of the needs of breast cancer survivors and should deal with these people with a holistic perspective, and that several more studies investigating the positive and negative changes experienced during this peri- od should be carried out.