A "murmur" is a soft, indistinct sound often associated with the heart. In medical terms, it refers to an abnormal sound heard during a heartbeat, which can indicate various conditions. These sounds are typically detected using a stethoscope during a physical examination and can be classified as innocent or pathological. Murmurs can arise from several factors, including blood flow turbulence or structural issues within the heart, such as valve problems. While some murmurs are harmless and require no treatment, others may necessitate further evaluation or intervention to address underlying health concerns.