The main reasons for the rapid growth of public relations are: 

1. Communication Gap: The need for communication between organisations and their public is being increasingly recognised. Public relation function is required to bridge this communication gap. 

2. Population Growth: A significant factor contributing to the development of public relations has been the increase in population and the resulting expansion of business, social and political organisations. 

3. Recognition of Social Responsibility: Public relations has made the corporations realise that they have a social responsibility to serve the public. 

4. Big Government: Growing government activity, legislation, taxes and criticism of business by politicians have all contributed to the expansion of public relations in to the field of public affairs and relations with local, state and national government. 

5. Development of Communication Media: Tremendous growth in ideo and cable systems has enabled rapid and widespread transmission of information. 

6. New Ethical Standards: High moral standards and ethical conduct in business have contributed to the development of public relations. 

7. Consumerism: Increasing emphasis on consumer service has caused many companies seeking the goodwill and support of consumers to respond to consumer pressure. This pressure represents a significant change in direction, one which presents to business both an opportunity and challenge. 

8. Education in Public Relations: Growing emphasis on public relations education is in good measures responsible for the increasing prestige of public relations.