What causes intestinal gas accumulation?

Normal human intestine has 150 ml of gas, if the gas increases, the intestines will show flatulence phenomenon. Show intestinal gas is mainly due to eating or breathing into the stomach of too much gas, such as eating more milk, beans and other gas-producing food; there may be due to gastrointestinal diseases caused by increased panting; gastrointestinal tract gas from the anus less amount. If the above symptoms are shown, be sure to go to the hospital for treatment.