Cardiac auscultation is a clinical technique used by healthcare professionals to listen to the sounds made by the heart. This is typically done using a stethoscope, which amplifies the heart sounds, allowing the clinician to assess the heart's function and detect any abnormalities. The primary sounds heard are the heartbeats, which include the "lub" (S1) and "dub" (S2) sounds, corresponding to the closing of heart valves. During auscultation, clinicians may also listen for additional sounds, such as murmurs, which can indicate issues like valve problems or blood flow irregularities. The process is non-invasive and provides valuable information about a patient's cardiovascular health, guiding further diagnostic and treatment decisions.