Dermatomyositis represents a rare inflammatory myopathy that induces inflammation in the muscles or related tissues, including the blood vessels supplying these muscles. The precise pathogenesis of this condition remains unknown. Diagnosis typically relies on clinical indicators such as skin rashes, progressive muscle weakness, elevated serum muscle enzymes, abnormal electromyogram results, and muscle biopsy. In this case study, we report a fatal case of dermatomyositis in a 23-year-old female patient who succumbed to complications of dermatomyositis, causing mortality without any evidence of malignancy.