Small abdominal pain in anger is related to irritable bowel syndrome, intestinal spasm and gynecological diseases. The gastrointestinal system is controlled by the function of the plant nerves, and when the human body is overly angry, it will lead to plant nerve dysfunction, thus affecting the function of the stomach and intestines, and even inducing the onset of irritable bowel syndrome. During an attack of irritable bowel syndrome, the peristaltic function of the intestines will be affected, and the substances in the intestines will stagnate, causing irritation to the intestinal wall, so abdominal pain will occur. When anger leads to stagnation of the liver and Qi, some people will induce intestinal spasms due to increased vasoconstriction of the intestinal system. Intestinal spasm attacks contraction, spasm will appear paroxysmal pain, the pain is mainly in the abdomen, after a period of time will be relieved on their own. When the human body is angry, it will lead to endocrine disorders, and even cause gynecological diseases, there will be pain in the abdomen, and common diseases include pelvic inflammatory disease, adnexitis and so on.