What causes gas when defecating?

Many people always feel that there is a gas in the intestines when they defecate, and they feel like going to the toilet, but they can't defecate. Most of these symptoms are caused by intestinal bloating, which mainly includes eating too fast, or often talking while eating, and certain foods that lead to dry stools, so bloating occurs.

Causes of gastrointestinal bloating : 1. Eating too fast or talking while eating, resulting in swallowing too much air.

2. Certain foods themselves are prone to cause bloating, such as beans, wheat bran, apples, peaches, onions, cabbage, cereals, and potato foods such as sweet potatoes and potatoes. These are all gas-producing foods.

3. Certain gastrointestinal diseases such as dry bowel syndrome and gallbladder disease (possibly fat malabsorption) can cause bloating.

4. Dairy products are also foods that easily cause bloating, or bloating may be caused by the body's inability to absorb lactose.

5. Fasting: People who can eat after surgery or those who have been hungry for a long time will suffer from bloating if they eat too much at once; overeating in normal people is also a cause of bloating.

Pathology 1. Swallowing of large amounts of air: Aerophagia can cause swallowing of large amounts of gas. When mental factors or certain gastrointestinal diseases increase saliva, more gas can also be swallowed along with saliva. Drinking large amounts of water or beverages can also cause swallowing of air.

2. Intestinal emptying disorder: When intestinal obstruction or weakened intestinal wall tension occurs, excess gas and fluid may accumulate in the intestine.

3. Indigestion: Rough foods high in fiber can increase the capacity of the intestinal cavity and affect normal peristalsis, causing abdominal distension; long-term use of broad-spectrum antibiotics can inhibit normal intestinal flora and cause food fermentation to produce gas.

Many gastrointestinal diseases, as well as diseases of the liver, gallbladder, pancreas, peritoneum, etc. can cause gastrointestinal bloating.