Few has been written and explored about the strategies that is possible to develop for describing and organizing elements that do not satisfy the ideal conditions that an empirical scientific theory has to fulfil. I sustain that, appealing to certain philosophical analysis of how empirical theories work, it is possible to recognize at least three types of inconsistencies in empirical science and to offer a classification for inconsistencies in empirical scientific theories, which may suggest to logicians and to philosophers of science, new ways to look at them.