Aortic regurgitation often does not heal on its own, so it is important to be aware of aortic regurgitation. It is one of the more important valves in the heart. The aorta is equivalent to the gateway to the heart, one of the most important valves for the heart and peripheral circulation, and when regurgitation occurs, it can seriously affect how well the heart pumps. Aortic regurgitation is classified as mild, moderate or severe, with different causes. In the case of the elderly, the valve condition may be caused by degenerative changes due to valve calcification. Some people have a two-lobe aortic valve, because normally the valve is three-lobe, and he is missing one, so naturally the regurgitation is more severe. Others have other problems, such as rheumatic heart disease, which causes damage to the structure of the aortic valve frame, resulting in incomplete closure of the aortic valve. In either case, if it becomes moderate or severe, it is important to follow up with the cardiac surgery department, and it is also recommended to replace the aortic valve as early as possible.