Definition
A "rhonchus" (plural: rhonchi) is a coarse, rattling sound in the lungs, usually caused by secretions in the larger airways. Unlike rales, which are finer, rhonchi are deeper and louder. A rhonchus often clears after coughing. It suggests inflammation or obstruction in the bronchial tubes. Medical professionals often detect rhonchi using a stethoscope. This sound indicates potential respiratory issues that need attention.