Analysis: Health communication has four main characteristics: ① Health communication transmits health information: health information is a valuable health resource, which refers to all knowledge, concepts, technologies, skills and behavior patterns related to human health; (2) Health communication has a clear purpose: health is the center of health communication, trying to change the knowledge, attitude and behavior of individuals and groups, and make them transform into a healthy direction; ③ The process of health communication is complicated: health communication has the characteristics of multi-level communication, multi-channel communication and multiple feedback; ④ Health communication has special quality requirements for communicators: health communicators belong to specialized technical talents and have their own specific requirements.
. One of the characteristics of interpersonal communication is timely feedback, that is, in interpersonal communication, the communicator can know the recipient's understanding and acceptance of information in time, so as to adjust the communication strategy, communication method and content in time according to the recipient's needs and characteristics.