Disequilibrium occurs when a person obtains the information that does not match what he knows. Disequilibrium needs to be overcome so that a person's knowledge is increasing. This research is qualitative research with a case study approach that aims to uncover the processes carried out by students to overcome the condition of disequilibrium in problem solving. Participants in this study were students who experienced disequilibrium in solving geometry problems. Data collection is done through geometry tests and in-depth interviews. Then the data is analyzed through data condensation, data display, and conclusion drawing stages. The results showed that the process undertaken by students to overcome the condition of disequilibrium is to check all the information contained in the problem then integrate the information into the scheme that is owned through assimilation or accommodation.