A murmur is a soft, low sound that is often continuous and indistinct. It can be produced by various sources, such as a gentle breeze, flowing water, or quiet conversations. Murmurs are typically characterized by their soothing quality and can create a calming atmosphere in different environments. In the medical field, a heart murmur refers to an unusual sound heard during a heartbeat, often caused by turbulent blood flow. While some murmurs are harmless, others may indicate underlying health issues. Medical professionals use a stethoscope to listen for these sounds, helping them assess a patient's cardiovascular health.