Conclusion:
We described a case with multiple underlying health conditions, who contracted SARS-CoV-2 and mucormycosis coinfection. Unfortunately, despite of surgical debridement and antifungal and antiviral therapies, he could not survive. We suggested that uncontrolled diabetes milieus made the patient susceptible to both severe COVID-19 and mucormycosis. Prevention and management guideline as well as prophylactic treatment protocols are needed for similar complicated patients.