Nodding head-like breathing mainly refers to the patient’s deep inhalation that lasts for a long time and the head is tilted back. The exhalation is short and the head returns to the original position. This is a clinical manifestation of dyspnea, in which there is a rhythmic backward and forward tilt with breathing, like a nodding motion. In most cases, the patient is in a state of extreme exhaustion, and the appearance of severe respiratory failure is a precursor to death at any time. It can be seen clinically in respiratory depression caused by some chemical poisoning and in respiratory depression of the central nervous system. It is also seen in severe infections of the lung tissue that affect lung function, and in trauma to the lung caused by various causes, resulting in damage to the lung tissue. Respiratory failure is also seen due to various causes or idiopathic diffuse pulmonary fibrosis.