Cause
Almost all cases of mitral stenosis are due to disease in the heart secondary to rheumatic fever and the consequent rheumatic heart disease. Uncommon causes of mitral stenosis are calcification of the mitral valve leaflets, and as a form of congenital heart disease. However, there are primary causes of mitral stenosis that emanate from a cleft mitral valve.
Other causes include infective endocarditis where the vegetations may favor increase risk of stenosis. It is the most common valvular heart disease in pregnancy
Read more about this topic: Mitral Stenosis