The thesis focuses on the profession of librarian and information professional in health care in the context of lifelong learning. The target group are professionals of information institutions in the network of public health information services in the Czech Republic. Content analysis of Czech and foreign materials and sociological quantitative research carried out by questionnaires in the Czech Republic's health information institutions are methods for analysing the needs of the librarian and information specialist in the health care sector in the Czech Republic. The output is a proposal of the concept of a lifelong professional education program called Competencies of the medical librarian for the performance of library and information activities. The lifelong education of medical librarians in connection with the concept of lifelong education of librarians in the Czech Republic is a process that will enable to gain necessary qualifications (professional knowledge and skills, general skills and soft skills) to perform this responsible and demanding profession.