Hiccups with smell may be related to physiological causes and pathological causes, such as functional dyspepsia, peptic ulcer, etc. 1. Physiological reasons: If you eat stimulating food with flavor, such as garlic, stinky tofu, etc., your burp will also have a special smell when your stomach is upset. 2. Pathological causes: Functional dyspepsia, peptic ulcer and other diseases can also have the symptom of burping with smell. (1) Functional dyspepsia: If the food in the stomach can not be well digested and emptied, the burp may appear in the stomach lodging taste, the smell is unpleasant. At this time, patients should focus on light food. If the symptoms are severe, it will be accompanied by bloating and loss of appetite. (2) Peptic ulcer: Peptic ulcer can cause inflammation, inflammatory edema and pyloric smooth muscle spasm causing temporary occlusion, resulting in pyloric obstruction. Some of the food in the stomach stays in the stomach for a longer period of time, and the stomach empties for a longer period of time, and then burping with a sour odor occurs. When burping with a smell, it is recommended to seek medical attention, follow the doctor’s instructions for further examination, clarify the cause with the doctor’s help, and carry out targeted treatment or therapy.