What is (are) What I need to know about Gas ?
Gas is air in the digestive tract. Gas leaves the body when people burp through the mouth or pass gas through the anus*the opening at the end of the digestive tract where stool leaves the body.
                
Everyone has gas. Burping and passing gas are normal. Many people believe that they burp or pass gas too often and that they have too much gas. Having too much gas is rare.