The most common injuries reported in the literature regarding the sport of boxing are to the brain, eyes, kidneys and hands. Shoulder injuries have not been fully reported in the literature until recently, as a result we aimed to present our arthroscopic findings in amateur boxers. Ten amateur boxers with complaints of pain in the shoulder region and decreased performance during sportsplay were enrolled. They were evaluated by physical examination, radiology and arthroscopy. There were no clinical findings of instability. One patient was found to have subacromial impingement; six had crepitation at various degrees during shoulder movements. At arthroscopy, all patients had a variety of pathological findings. Five patients had Grade 1, three had Grade 2, and two had Grade 3 chondropathy. Various degrees of fraying of the anterosuperior and posterosuperior regions of the glenoid labrum were noted in all cases. Three patients had superior labrum anterior and posterior lesions, one patient had a posterior labroligamentous lesion, and one had chondral erosion in the anterosuperior portion of the humeral head. In conclusions, although the injury mechanism of the shoulder during boxing is unknown, this study shows that shoulder complaints in boxers should be considered as possible indicators of serious intra-articular lesions.