General 
One of the most common valvular heart problems is Mitral Valve Prolapse. It is affecting even more than 5% of the population and is more common in women than in men. It is usually an asymptomatic condition. The mitral valve leaflets are not able to withstand the intraventricular pressure during systole and will in the weakest areas of the valve tissue bulge backwards. The basic pathology is a so-called myxomatous degeneration of the the tissue composing the mitral valve.  The tissue proliferates and will allow the leaflets to partly “collapse” under pressure. When this happens, a “flapping” or “clicking” sound is generated . There may be single or multiple such collapses happening mostly in mid to late systole. As the leaflets continue to weaken, valve closure becomes more difficult and mitral regurgitation may occur.