This thesis deals with communication barriers and their impact on the results of the work process and group climate. It explains the concept of communication, elements of communication process and the basic division of communication, verbal communication, nonverbal communication, effective communication and its elements, requirements for effective communication, communication with managers, managerial communication strategy, the specifics of communication in health care management and internal communication. The thesis further analyzes communication barriers from the perspective of different authors, which is crucial for the practical part, where the results of questionnaire-compiled charts reflecting the different communication barriers fr...