Pulmonary emboli are blood clots that typically originate in the deep veins of the legs or pelvis and travel through the bloodstream to block one or more arteries in the lungs. This condition can be life-threatening and requires prompt treatment to prevent serious complications such as pulmonary infarction or pulmonary hypertension. Research in this area focuses on identifying risk factors, improving diagnostic methods, developing effective treatments, and preventing recurrent embolism in patients. Current studies also explore the use of new technologies and approaches to better understand the pathophysiology of pulmonary emboli and improve outcomes for affected individuals.