One of the current problems in language studies is the principle that linguistic categories are discrete and perfectly bounded. During these last decades, instead of considering them as closed and well-defined, we are understanding all categorization as a predominance or selection of attributes that represent it to a greater or lesser degree with respect to other categories. This look changes not only our way of studying certain mental processes but also our interpretation of the world. Linguistic analysis from prototype theory can refract a network of interpreted relationships that have been mentally grouped. For this reason, linguistic categories are interpreted as cognitive categories. On this occasion, we consider it necessary to return to some of these categories to value them and describe them with respect to others in the context of real linguistic uses. On the other hand, the challenge of describing and analyzing the use of the language by the speakers is based on considering language as a communication instrument made up of signs, whose design and structure are directly motivated by the communicative act. In other words, the syntax is not only semantically, but also pragmatically motivated. In this edition we ask ourselves: How, then, is grammar understood, studied and described, if linguistic routines are constantly renegotiated in speech according to the context of enunciation and the intentions of the speakers? The Dossier "Language Problems: Mechanisms and Purposes in Discursive Uses" aims to contribute to current language studies from the cognitive-prototypical perspective. We call, within the framework of discursive studies, to address studies of language and cognitive processes involved in the choice of linguistic forms. We will also consider the communicative intention of the speaker as an aspect to identify and describe from the analysis of discursive uses of real texts and their frequencies of use.