The article discusses a case of erythematous annular atrophic patchy lesions in the bilateral axillae of a 43-year-old man with dermatomyositis (DM). DM is an inflammatory myopathy characterized by muscle weakness, skin lesions, and systemic manifestations, with both cellular and humoral immunity playing important roles in its development. The patient's skin lesions were initially misdiagnosed as candidal intertrigo, but further examination revealed dermatoscopic and histopathological evidence of axillary DM, a rare presentation. The study highlights the importance of accurate evaluation of skin lesions in DM for early diagnosis and emphasizes the impact of the disease on patients' quality of life.