What Is Pulmonary Regurgitation?

Reflux often refers to symptoms of the upper gastrointestinal tract. In the absence of nausea, nausea and fatigue, gastric contents flow back into the mouth or pharynx. If the reflux is indigestible food, it is called reflux. If it is sour liquid, it is reverse acid. In a few cases, it may have bitter bile and intestinal fluid. Heartburn is a typical clinical manifestation of reflux.