Nonpenetrating traumatic heart injury is often overlooked due to its transient and subtle clinical presentation, but can lead to serious complications. This paper discusses 546 autopsy cases of nonpenetrating traumatic heart injury, highlighting the most common lesions, including myocardial rupture, pericardial hemorrhage, and contusion. The study emphasizes the importance of early diagnosis and evaluation to prevent severe outcomes. Nonpenetrating trauma rarely causes coronary artery thrombosis, but can lead to cardiac rupture, pericarditis, and valvular lesions. Cardiac contusion and laceration are common, often with minimal external signs, and may mimic myocardial infarction. Cardiac rupture is the most common lesion, often fatal, but survival is possible in some cases. Surgical repair is possible for certain types of cardiac rupture. Traumatic septal rupture is also common, with survival possible in some cases. Coronary artery injury, including laceration or rupture, is not rare. Valvular lesions, particularly aortic valve rupture, are also common. Papillary muscle and chordae tendineae injuries can lead to valvular insufficiency. Arrhythmias and conduction defects are common consequences of myocardial injury. Early recognition and treatment are crucial for improving outcomes in patients with nonpenetrating traumatic heart injury.Nonpenetrating traumatic heart injury is often overlooked due to its transient and subtle clinical presentation, but can lead to serious complications. This paper discusses 546 autopsy cases of nonpenetrating traumatic heart injury, highlighting the most common lesions, including myocardial rupture, pericardial hemorrhage, and contusion. The study emphasizes the importance of early diagnosis and evaluation to prevent severe outcomes. Nonpenetrating trauma rarely causes coronary artery thrombosis, but can lead to cardiac rupture, pericarditis, and valvular lesions. Cardiac contusion and laceration are common, often with minimal external signs, and may mimic myocardial infarction. Cardiac rupture is the most common lesion, often fatal, but survival is possible in some cases. Surgical repair is possible for certain types of cardiac rupture. Traumatic septal rupture is also common, with survival possible in some cases. Coronary artery injury, including laceration or rupture, is not rare. Valvular lesions, particularly aortic valve rupture, are also common. Papillary muscle and chordae tendineae injuries can lead to valvular insufficiency. Arrhythmias and conduction defects are common consequences of myocardial injury. Early recognition and treatment are crucial for improving outcomes in patients with nonpenetrating traumatic heart injury.