The main reason why anger can easily cause stomach pain is that there is an “emotional line” in the brain, that is, the emotional center, and the digestive system is mostly controlled by the vegetative nerves, which are easily affected by emotions, so anger will affect the digestive system through the vegetative nerves, causing stomach cramps and thus causing stomach pain. In particular, people who have suffered from stomach problems are more likely to have stomach pain in this situation, making the original symptoms worse. Stomach pain when angry is usually a functional gastric disorder. Mood swings cause more neurotransmitter secretion, which makes the plant nerves more excited, prompting the smooth muscle of the stomach and intestines to contract. When excitability increases abnormally, smooth muscle contraction speeds up and muscle spasm occurs, causing stomach pain, which may also be accompanied by adverse reactions such as burping, bloating, nausea, and burning in the stomach. For people suffering from gastric ulcer, gastritis, gastrointestinal dysfunction and other diseases, this muscle spasm is more likely to irritate the gastric mucosa and make the symptoms appear or even worsen. In addition, from the perspective of Chinese medicine, when the body’s emotions are not good, there will be liver qi stagnation, which in turn affects the elevation and transportation of the spleen and stomach, which may lead to gastrointestinal symptoms. This bad mood will not only cause discomfort in the gastrointestinal tract, but also easily damage the liver, so it needs to be regulated from the liver. In life, it is recommended to maintain a calm and optimistic state of mind, face life positively, adjust stress in time and avoid being affected by bad emotions. For people suffering from gastrointestinal disorders in the control of emotions at the same time, should also actively carry out treatment, with a good attitude to face the disease, early improvement of symptoms and cure the disease.