Introduction: Disorders of the shoulder are the major musculoskeletals morbidities, whose pathophysiological mechanisms of pain in the shoulder are poorly understood , myofascial trigger points are presented as alternative diagnosis of these disorders. Objective: To investigate the effectiveness of the release of trigger points on the pain symptoms in patients with chronic shoulder pain. Method: We conducted a descriptive study using a systematic literature review , in consultation with the databases PubMed , EMBASE , CINAHL , PEDro , SportDiscus , and LILACS . Two reviewers assessed the methodological quality of the selected studies , with the help of Quality Scale Jadad and PEDro scale. Results: The initial search resulted in 312 articles . After analyzing the titles and reading the abstracts , 70 studies that appeared repeatedly in more than one database and 214 who did not meet the predefined inclusion criteria , 28 texts were analyzed in their entirety were excluded , considering the inclusion and exclusion criteria defined only 2 articles were selected and subjected to analysis for methodological quality. Conclusion: The results demonstrate the importance of inspection and inactivation of myofascial trigger points in the muscles of the shoulder in patients with chronic pain , as they contribute to decreased overall picture of pain.