Acute pericarditis is classified according to the course of the disease, including acute fibrinous pericarditis and acute exudative pericarditis. If classified according to the cause, it can be divided into infectious pericarditis and non-infectious pericarditis. Infectious pericarditis can be caused by viruses, bacteria, tuberculosis, fungi, etc., while non-infectious pericarditis can be seen in tumors, uremia, acute myocardial infarction, aortic dissection, connective tissue disease, trauma, and cardiac surgery, etc.

Acute pericarditis is an acute inflammatory disease of the pericardium's parietal layer, and its occurrence requires timely diagnosis. It is also important to further clarify the specific cause of acute pericarditis and actively treat it.