Why do we do burp?
Burping is usually a normal bodily process that enables air to be brought up and released from the stomach. This produces a distinctive sound. Although burping is perfectly natural, it can cause embarrassment and discomfort.
Every time a person swallows fluid or food, air is also swallowed. Excess air may be swallowed when an individual eats or drinks too quickly, talks while they are eating, smokes, sucks on hard sweets, chews gum, or drinks fizzy drinks, for example. The unconscious swallowing of air is referred to as aerophagia.
The condition gastroesophageal reflux disease (GERD) can also have this effect. Stomach acid moving up into the esophagus may cause a person to keep swallowing in order to clear it, leading to more air being swallowed and therefore belching. In some cases, people swallow air simply as a nervous habit. Other conditions that can lead to burping include gastritis, where the stomach lining becomes inflamed or Helicobacter pylori infection, which causes stomach ulcers. Indigestion and heartburn may also be relieved by burping.
Air accumulating in the stomach causes it to stretch, which causes the muscle at the bottom end of the food pipe (esophagus) to relax. Air can then move from the stomach and pass along the esophagus and out of the mouth.