This diploma work is dealing with the phenomenon of matrimonial crises. In the introductory chapters of the theoretical part we are defining the main themes of this work - relationship, philosophy of marriage, crises and marital crises. We are concerned with the couples therapy, its history and selected approaches. One chapter is devoted to the developmental approach that gives the possibility to see marital crises as an opportunity to self-knowledge, personality growth or relationship advancement. Practical part is conceived as a qualitative research. Its main goal is to survey and explore marital crises that we observed in clients of marital consulting centre. We would like to offer a more generalized vision of marital crises. We would also answer the questions how does a marital crises looks like and what processes are going on. Our work is setting down the research goals and describes in details chosen methodology, research sample and the methods of collecting and processing the data. Research data were collected mainly in the half- structured interview that was completed by the observation of interaction styles and a technique of relationship sculpturing. The research results were processed with the help of the method of open coding that is part of the grounded theory. The data were analyzed,...