Mild mitral valve regurgitation is observed and further investigation is needed to understand the causes of this condition.

If mild mitral valve regurgitation occurs in a healthy individual, it is primarily due to physiological degeneration of the mitral valve, generally does not lead to adverse consequences, and does not require special treatment.

If it is caused by diseases that lead to an enlarged heart, resulting in relative mild mitral valve regurgitation, this situation necessitates active treatment of the underlying diseases to effectively control the condition, prevent further enlargement of the heart, exacerbate the degree of mitral valve regurgitation, and thus adversely affect health.