"Pulsus bisferiens" is a medical term that describes a condition characterized by having a pulse with two distinct beats in each heartbeat. Synonyms for pulsus bisferiens include double pulse, biphasic pulse, or the "Corrigan pulse" - named after the physician who first described it. Other terms used interchangeably with pulsus bisferiens include the "Duroziez's sign" and the "Quincke's pulse." The condition is most often associated with aortic regurgitation, but can also be caused by other cardiovascular disorders. Doctors use various methods to detect pulsus bisferiens, including physical examination, electrocardiography, and echocardiography. While pulsus bisferiens may be a sign of serious underlying health issues, it is treatable with appropriate medical intervention.