“”Heart” can be understood as a pump, and the “aorta” is the water pipe connected to the pump, the pump and the one-way valve between the water pipe that is the “aortic valve”.
The “incomplete aortic valve” is a one-way valve damage, the water in the water pipe will flow back into the pump, over time, the workload of the pump more and more, the “heart” pump function failure, and the blood in the aorta part back to the heart, and cause the inflow of blood into the body The “heart” pump fails and blood from the aorta is partially returned to the heart, resulting in less blood flowing to the rest of the body and a manifestation of peripheral blood volume deficiency.”