Any heart valve problem puts you at risk of an infection of the heart's inner lining (endocarditis). If the aortic valve is leaky, it's more prone to infection than is a healthy valve.
When it's mild, aortic valve regurgitation may never cause a serious threat to your health. But when it's severe, aortic valve regurgitation may lead to heart failure. Heart failure is a serious condition in which your heart is unable to pump enough blood to meet your body's needs.