Left chest gurgling may be caused by intestinal sounds, lung disease, heart disease and other reasons. 1. Bowel sounds: When left chest rumbling can be heard directly, it may be associated with bowel sounds caused by fast gastrointestinal peristalsis after eating, and the left chest rumbling will disappear after a period of time. In addition, bowel sounds caused by intestinal diseases may also produce left chest rumbling symptoms. 2. Lung disease: left chest rumbling from the lungs, may be the lungs in the airway phlegm thrombus formation, they are generated by the respiratory gas in and out, once the phlegm thrombus discharged from the left chest will no longer rumbling. 3. Heart disease: when left chest rumbling occurs in the chest, it can be considered as a murmur caused by heart disease, such as ventricular septal defect, atrial septal defect and so on. It is recommended that when you find your left chest rumbling, you should first go to a regular hospital for a detailed examination to clarify your condition and then follow the doctor’s instructions for standardized treatment.