It is best to consider a more polite address according to the sex and age of the patient. Doctors can address patients in patients' WeChat group according to their gender and age, and it is best to consider more polite names, such as "grandpa", "aunt" or "grandpa" and "grandma". Doctor, a person who studies medical science and technology and saves lives by treating diseases, generally refers to a clinician. In accordance with the laws and regulations of the Ministry of Health, the Health and Wellness Commission and the Ministry of Health on medical and health management, preside over doctor-patient communication, academic discussion, new technology promotion, prognosis analysis, public education, nursing teaching, rehabilitation training and discharge education.