Mitral valve stenosis usually worsens slowly. You may not have any symptoms, or you may have mild ones for many years. Symptoms of mitral valve stenosis can occur at any age — even during childhood. Symptoms of mitral valve stenosis include:  Shortness of breath, especially with activity or when you lie down Fatigue, especially during increased activity Swollen feet or legs Sensations of a fast, fluttering or pounding heartbeat Dizziness or fainting Irregular heart sound, also called a heart murmur Fluid buildup in the lungs Irregular heart rhythms Chest discomfort or chest pain Coughing up blood  Mitral valve stenosis symptoms may appear or get worse when the heart rate increases, such as during exercise. Anything that puts stress on the body, including pregnancy or infections, may trigger symptoms.
mitral valve stenosis worsens slowly  may symptoms  may mild ones years  symptoms mitral valve stenosis can occur age — childhood  symptoms mitral valve stenosis include:  shortness breath  especially activity lie down fatigue  especially increased activity swollen feet legs sensations fast  fluttering pounding heartbeat dizziness fainting irregular heart sound  called heart murmur fluid buildup lungs irregular heart rhythms chest discomfort chest pain coughing blood  mitral valve stenosis symptoms may worse heart rate increases  exercise  puts stress body  including pregnancy infections  may trigger symptoms
mitral valve stenosis