A web survey was conducted to clarify the status of skin care in patients undergoing radiation therapy after breast cancer surgery. Eleven radiation therapy facilities across Japan participated in the survey, and responses were received from 95 participants. A total of 84 participants (88.4%) received a skin care orientation before starting radiation therapy, and 72 participants (75.8%) were practicing skin care. However, 32 participants (33.7%) expressed anxiety about skin care. The orientation was effective in encouraging skin care implementation (p<0.001), but did not significantly reduce the likelihood of anxiety about skin care (p=0.347). Skin care concerns included radiation dermatitis symptoms patients were currently experiencing and expected symptoms and coping methods after the end of radiation therapy. The results of this study indicate a need to establish a nursing system that provides continuous support for skin care implementation for breast cancer patients undergoing radiation therapy, both during and after treatment.