Abstract: In the “hormone therapy” case, the patient’s over-interpretation of the right to informed consent led to a reasonable boundary problem for doctors in fulfilling their obligation to inform. This paper takes the patient’s informed consent as the entry point, discusses how to correctly exercise the right of informed consent, analyzes the reasonable boundary of the physician’s obligation to inform, and provides countermeasures and suggestions for improving the fulfillment of the physician’s obligation to inform

Key words: informed consent, physicians’ obligation to inform, “hormone therapy” case