There is a growing concern for students with learning difficulties and teachers are responsible for identifying and helping these students. The present study aims to explore the teachers' knowledge of manifestations, causes and types of learning difficulties, necessary to diagnose, prevent or remedy learning difficulties. The participants involved in the research were 63 teachers from six counties of Romania. Their answers to the questionnaire items show that teachers are competent to identify their students with learning difficulties. At the same time, the respondents underline that they feel the need to be supported in order to provide the adequate assistance to this category of students. The main areas where they think they need help are: the elaboration of adapted requirements suitable for students with learning difficulties and the readjustment of the school curriculum.