PURPOSE: to investigate text cohesion in written productions of four deaf male adults using Brazilian Sign Language (Libras) and write in Portuguese. Participants integrate a discussion group on violence using that language coordinated by a fluent interpreter. The study also verifies possible interference of Libras on writing in Portuguese. METHODS: after a few sessions, a discussing the theme violence, each deaf participant wrote a text on a violence situation. These texts were analyzed qualitatively as for their cohesion. RESULTS: the study pointed out the existence of sequential and referential text cohesion in all the analyzed texts, although compromised. There was interference of Libras in their writing. The produced texts related in some way to symbolic violence. The texts per se were difficult to understand without direct interaction with the participant. Despite difficulties in comprehension of writing language whose structure is very different from the sign language, it became clear that these deaf persons could construct texts with sense and cohesion. CONCLUSION: the texts produced by the studied deafs have cohesion, although the interference of Libras was harmful in some cases as for the reader's comprehension. As text cohesion diminishes, there is more need for explanations by the author about the meaning of the said text.