Deep and large breathing mainly refers to the increase in the amplitude of breathing, which is a relatively common clinical symptom. If there is strenuous exercise or mental tension or emotional excitement in general, it is easy to cause deep and large breathing, which is a normal physiological phenomenon. Various causes of shortness of breath and dyspnea also tend to cause comparisons, commonly due to respiratory diseases and heart diseases. It is mainly due to the caused hypoxia, and the body compensates for the deep heavy breathing in order to adjust itself. When there is metabolic acidosis, hepatic coma, uremic syndrome will affect the central nervous system, also easy to cause deep breathing. At this time, the condition is more serious and requires active treatment of the primary disease and timely oxygenation.