The article outlines main problems of automated data search, application of databases and medical information systems in practice of medical institutions is presented. The practice of registration, storage of health information in electronic databases, structuring and analysis of data available is presented. Unspecialized retrieval systems for searching medical information in electronic file archives and creating full-text databases of medical records considering the relevance of found information have been tested. The advantages and disadvantages of various retrieval systems are reviewed, particularly at searching for Russian and Ukrainian full-text data arrays. The electronic file archives and databases of Ukrainian Research Institute of Industrial Medicine after nosology "radiculopathy" and "radiculomyelopathy” were used as the object of research.