What is the meaning of MR AR in echocardiography and does MR AR slight have any effect on the heart?

Minor regurgitation of the mitral valve of the heart is not a cause for concern and generally does not require treatment if heart function is normal, there are no other uncomfortable symptoms, and there is no clear organic heart disease on examination. Due to the continuous advancement of ultrasound instruments, regurgitation of the bicuspid and tricuspid valves, especially minor regurgitation, is quite common. The cause of regurgitation can be organic or functional (or physiologic).