The reason for bloating and pain in the abdomen without eating is that although the patient has not eaten, the digestive system will still work normally and the bacteria located in the intestine cannot decompose food residues, but will produce a large amount of gas, and the accumulation of gas in the intestine will stimulate the intestinal wall and cause abdominal bloating and pain symptoms. At the same time, the stomach also secretes stomach acid, which stimulates the gastrointestinal mucosa and leads to gastrointestinal pain, while chemical reactions with alkaline intestinal fluid in the intestine will also aggravate the abdominal distension and pain symptoms. This shows that not eating on time can have a negative impact on gastrointestinal function, and in serious cases gastritis, gastric ulcer and duodenal ulcer can occur. When abdominal distension occurs, you can choose to take oral drugs such as liver and stomach pain relief tablets, which can quickly relieve the symptoms of abdominal distension.