But why does a burp make noise? As the burp travels up the esophagus, it hits up against a closed, valve-like structure called a sphincter. Trapped behind that sphincter muscle, the gas builds up One reason why you may burp when you yawn is because of the way your body works. When you yawn, your mouth opens wide and your diaphragm (a muscle that separates your chest from your abdomen) contracts. This can cause air to be swallowed and trapped in your stomach, leading to a burp. "Carbonated beverages are most commonly associated with swallowing air and are the most common reason people burp," says Dr. Schneider. "Most of the time, that air actually stays trapped in the esophagus until it comes back up." If you have heartburn you may also experience burping. Causes. H. pylori infection. Meganblase syndrome. Lifestyle changes. Takeaway. You may burp if you swallow too much air. Practices, such as eating and drinking slowly, may prevent burping. While burping is natural and expected, excessive burping—especially if accompanied by other symptoms—could signal an underlying health issue like acid reflux, gastritis, or IBS. Shortness of breath. A person can be so full of air that athletics, or even ability to climb stairs, etc. are impaired. Hypersalivation when symptoms of bloating are major. Inability to vomit. A few simply cannot vomit; more often it is possible but only after strenuous retching. IxPkJ.

why do i rarely burp