There are several barriers to effective communication that include language differences, physical barriers, differences in perception and a lack of attention or interest. Cultural differences and emotional barriers may also hinder effective communication.
Psychological barriers can affect the effectiveness of communication. Anger, stress or emotional distress affects not only how a person communicates with others, but how others process and deal with the communication.
Physical barriers such as deafness or speech problems, and geographical barriers can also inhibit the effectiveness of communication. Technological advancements have made communication easier in these instances.
Barriers created by different attitudes also cause communication issues. Some people have a resistance to change and different ideas and therefore create barriers in communication. Personality conflicts are a main cause of communication issues.
Barriers that exist within different organizations also cause problems. If there is a lack of understanding or unclear delineation of responsibilities within an organization, communication can become unclear and disjointed. When people don't know what is expected of them, lines become blurred and communication becomes less effective.
Different languages and cultures can make communication less effective. Those not familiar with a specific dialect or colloquialisms can affect communication.