Preventive medicine is different from medical science system. It is a science that studies the prevention and elimination of diseases, pays attention to hygiene, strengthens physique, and improves and creates a healthy production environment and living conditions. The difference between preventive medicine and clinical medicine is that it is aimed at people, not just individuals. One of the trends of medical development is from individual medicine to group medicine. Today, it is impossible to completely solve many medical problems without group and group medical methods.
Preventive medicine is a science that takes "environment-people-health" as the model, takes people as the research object, takes prevention as the main ideological guidance, studies the law of environmental impact on health by using modern medical knowledge and methods, formulates measures to prevent human diseases, and realizes the purpose of promoting health and preventing disability and disease. The characteristics of preventive medicine include: working objects include individuals and groups, focusing on healthy and asymptomatic patients, countermeasures and measures have more positive preventive effects and more health benefits for the population, research methods pay more attention to the combination of micro and macro, and research focuses on the relationship between environment and population health.
This subject applies modern medicine and other scientific and technological means to study the relationship between human health and environmental factors and formulate strategies and measures for disease prevention, so as to control diseases, protect human health and prolong human life. With the development of medical model, this major shows its importance in medical science more and more.