%0 English Abstract %T [The Development of the Oncofertility Practice Guideline for Breast Cancer Patients in Japan and the Considerations of Clinical Ethical Issues]. %A Tamura Hatano N %J Gan To Kagaku Ryoho %V 50 %N 12 %D 2023 Dec %M 38247060 暂无%X It is difficult to make high level evidence in oncofertility area because of diversity not just in each oncological clinical factor but also in reproduction and social setting. For the purpose to overcome these difficulties, the process in revising third edition of"Oncofertility practice guidelines for breast cancer patients"was broken away from the traditional model to new model, that following shared decision making process in its own. It is promising that public fundamental supports not only change patients' financial problem but will move forward entire industry. In the revision process the discussion developed much further about ethical dilemmas. The awareness of ethical dilemmas will support patients and healthcare providers in changing times.