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By Mayo Clinic staffA common sign of pulmonary stenosis is a sound called a heart murmur — an abnormal whooshing sound caused by turbulent blood flow — that your doctor may hear when he or she listens to your heartbeat. Other signs and symptoms may include:
- Shortness of breath, especially during exertion
- Chest pain
- Loss of consciousness (fainting)
- Fatigue
- Poor weight gain (in babies)
Signs and symptoms vary, depending on the extent to which the valve is obstructed. People with mild pulmonary stenosis might have symptoms only while exercising or have none at all.