Covid 19 is pandemic all over the world. It has been first detected in China in 2019 among people working in animal market. It is caused by corona virus which has close relation to SARS which was first detected in 2007. Coronavirus can produce symptoms which is varied from simple common cold like disease to severe respiratory disease including respiratory distress condition. Most of the postmortem lungs showed histological picture of diffuse alveolar damage, pneumonia, thromboembolism of small sized pulmonary arteries and pulmonary embolism.But those elderly people or those with chronic illnesses they showed more serious and life-threatening symptoms like difficult breathing, dyspnea, chest pain or even loss of speech and movement. This review study focused on the histological findings in the autopsy of lungs in patients died from coronavirus. The present study concluded that the principal cause of death in covid 19 patients is the acute respiratory distress syndrome which showed a histological picture of diffuse alveolar damage, microvascular damage and pulmonary thromboembolism.