Breath sounds are the noises produced during breathing, which can be heard using a stethoscope. These sounds help healthcare professionals assess lung function and identify potential respiratory issues. Common types of breath sounds include vesicular sounds, which are soft and low-pitched, and bronchial sounds, which are louder and higher-pitched. Abnormal breath sounds, such as wheezing or crackles, may indicate underlying health problems like asthma or pneumonia. By analyzing these sounds, doctors can gain valuable insights into a patient's respiratory health and determine appropriate treatment options.